55830057 has 16 divisors (see below), whose sum is σ = 79188480. Its totient is φ = 34866432.

The previous prime is 55830053. The next prime is 55830079. The reversal of 55830057 is 75003855.

It is not a de Polignac number, because 55830057 - 2² = 55830053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55830053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8919 + ... + 13827.

It is an arithmetic number, because the mean of its divisors is an integer number (4949280).

Almost surely, 2^55830057 is an apocalyptic number.

It is an amenable number.

55830057 is a deficient number, since it is larger than the sum of its proper divisors (23358423).

55830057 is a wasteful number, since it uses less digits than its factorization.

55830057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5152.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 55830057 is about 7471.9513515547. The cubic root of 55830057 is about 382.1988333776.

The spelling of 55830057 in words is "fifty-five million, eight hundred thirty thousand, fifty-seven".