61432656 has 20 divisors (see below), whose sum is σ = 158701152. Its totient is φ = 20477536.

The previous prime is 61432633. The next prime is 61432661. The reversal of 61432656 is 65623416.

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, 639876 + ... + 639971.

Almost surely, 2^61432656 is an apocalyptic number.

It is an amenable number.

61432656 is an abundant number, since it is smaller than the sum of its proper divisors (97268496).

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

61432656 is a wasteful number, since it uses less digits than its factorization.

61432656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279858 (or 1279852 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 61432656 is about 7837.8986979930. The cubic root of 61432656 is about 394.5782091644.

The spelling of 61432656 in words is "sixty-one million, four hundred thirty-two thousand, six hundred fifty-six".