61457504 has 24 divisors (see below), whose sum is σ = 121363200. Its totient is φ = 30635136.

The previous prime is 61457489. The next prime is 61457537. The reversal of 61457504 is 40575416.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8417 + ... + 13919.

It is an arithmetic number, because the mean of its divisors is an integer number (5056800).

Almost surely, 2^61457504 is an apocalyptic number.

It is an amenable number.

61457504 is a deficient number, since it is larger than the sum of its proper divisors (59905696).

61457504 is a wasteful number, since it uses less digits than its factorization.

61457504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862 (or 5854 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 61457504 is about 7839.4836564662. The cubic root of 61457504 is about 394.6314010572.

The spelling of 61457504 in words is "sixty-one million, four hundred fifty-seven thousand, five hundred four".