54597661590 has 64 divisors (see below), whose sum is σ = 135902840832. Its totient is φ = 14022892800.

The previous prime is 54597661477. The next prime is 54597661631. The reversal of 54597661590 is 9516679545.

54597661590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×54597661590² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54597661590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57114 + ... + 335346.

It is an arithmetic number, because the mean of its divisors is an integer number (2123481888).

Almost surely, 2^54597661590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54597661590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67951420416).

54597661590 is an abundant number, since it is smaller than the sum of its proper divisors (81305179242).

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

54597661590 is a wasteful number, since it uses less digits than its factorization.

54597661590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278485.

The product of its (nonzero) digits is 10206000, while the sum is 57.

The spelling of 54597661590 in words is "fifty-four billion, five hundred ninety-seven million, six hundred sixty-one thousand, five hundred ninety".