56457782 has 16 divisors (see below), whose sum is σ = 92093760. Its totient is φ = 25849728.

The previous prime is 56457781. The next prime is 56457787. The reversal of 56457782 is 28775465.

It is a super-2 number, since 2×56457782² = 6374962296719048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56457781) 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, 21182 + ... + 23697.

It is an arithmetic number, because the mean of its divisors is an integer number (5755860).

Almost surely, 2^56457782 is an apocalyptic number.

56457782 is a deficient number, since it is larger than the sum of its proper divisors (35635978).

56457782 is a wasteful number, since it uses less digits than its factorization.

56457782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44935.

The product of its digits is 470400, while the sum is 44.

The square root of 56457782 is about 7513.8393647988. The cubic root of 56457782 is about 383.6259151704.

The spelling of 56457782 in words is "fifty-six million, four hundred fifty-seven thousand, seven hundred eighty-two".