56828505 has 32 divisors (see below), whose sum is σ = 93283200. Its totient is φ = 29532672.

The previous prime is 56828503. The next prime is 56828507. The reversal of 56828505 is 50582865.

It is an interprime number because it is at equal distance from previous prime (56828503) and next prime (56828507).

It is not a de Polignac number, because 56828505 - 2¹ = 56828503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56828503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138741 + ... + 139149.

It is an arithmetic number, because the mean of its divisors is an integer number (2915100).

Almost surely, 2^56828505 is an apocalyptic number.

It is an amenable number.

56828505 is a deficient number, since it is larger than the sum of its proper divisors (36454695).

56828505 is a wasteful number, since it uses less digits than its factorization.

56828505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 56828505 is about 7538.4683457583. The cubic root of 56828505 is about 384.4637612450.

The spelling of 56828505 in words is "fifty-six million, eight hundred twenty-eight thousand, five hundred five".