61722552 has 16 divisors (see below), whose sum is σ = 154306440. Its totient is φ = 20574176.

The previous prime is 61722539. The next prime is 61722559. The reversal of 61722552 is 25522716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61722559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285863 + ... + 1285910.

Almost surely, 2^61722552 is an apocalyptic number.

It is an amenable number.

61722552 is an abundant number, since it is smaller than the sum of its proper divisors (92583888).

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

61722552 is a wasteful number, since it uses less digits than its factorization.

61722552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571782 (or 2571778 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 61722552 is about 7856.3701542124. The cubic root of 61722552 is about 395.1978968838.

The spelling of 61722552 in words is "sixty-one million, seven hundred twenty-two thousand, five hundred fifty-two".