61623552 has 36 divisors (see below), whose sum is σ = 164010560. Its totient is φ = 20540928.

The previous prime is 61623539. The next prime is 61623557. The reversal of 61623552 is 25532616.

It is a super-2 number, since 2×61623552² = 7594924322193408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61623557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39352 + ... + 40887.

Almost surely, 2^61623552 is an apocalyptic number.

It is an amenable number.

61623552 is an abundant number, since it is smaller than the sum of its proper divisors (102387008).

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

61623552 is an equidigital number, since it uses as much as digits as its factorization.

61623552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80258 (or 80244 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 61623552 is about 7850.0670060835. The cubic root of 61623552 is about 394.9864910191.

The spelling of 61623552 in words is "sixty-one million, six hundred twenty-three thousand, five hundred fifty-two".