61604952 has 32 divisors (see below), whose sum is σ = 154208880. Its totient is φ = 20508800.

The previous prime is 61604941. The next prime is 61604953. The reversal of 61604952 is 25940616.

It is a super-2 number, since 2×61604952² = 7590340221844608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61604953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30238 + ... + 32210.

Almost surely, 2^61604952 is an apocalyptic number.

It is an amenable number.

61604952 is an abundant number, since it is smaller than the sum of its proper divisors (92603928).

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

61604952 is a wasteful number, since it uses less digits than its factorization.

61604952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283 (or 3279 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 61604952 is about 7848.8822134110. The cubic root of 61604952 is about 394.9467470804.

The spelling of 61604952 in words is "sixty-one million, six hundred four thousand, nine hundred fifty-two".