61552464 has 20 divisors (see below), whose sum is σ = 159010656. Its totient is φ = 20517472.

The previous prime is 61552459. The next prime is 61552481. The reversal of 61552464 is 46425516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641124 + ... + 641219.

Almost surely, 2^61552464 is an apocalyptic number.

It is an amenable number.

61552464 is an abundant number, since it is smaller than the sum of its proper divisors (97458192).

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

61552464 is a wasteful number, since it uses less digits than its factorization.

61552464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282354 (or 1282348 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 61552464 is about 7845.5378400719. The cubic root of 61552464 is about 394.8345490922.

The spelling of 61552464 in words is "sixty-one million, five hundred fifty-two thousand, four hundred sixty-four".