61525530360 has 192 divisors, whose sum is σ = 230546796480. Its totient is φ = 13938462720.

The previous prime is 61525530329. The next prime is 61525530373. The reversal of 61525530360 is 6303552516.

61525530360 is a `hidden beast` number, since 6 + 15 + 255 + 30 + 360 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 176730 + ... + 392790.

It is an arithmetic number, because the mean of its divisors is an integer number (1200764565).

Almost surely, 2^61525530360 is an apocalyptic number.

61525530360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61525530360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115273398240).

61525530360 is an abundant number, since it is smaller than the sum of its proper divisors (169021266120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61525530360 is a wasteful number, since it uses less digits than its factorization.

61525530360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216198 (or 216191 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 61525530360 in words is "sixty-one billion, five hundred twenty-five million, five hundred thirty thousand, three hundred sixty".