56158004 has 24 divisors (see below), whose sum is σ = 118923840. Its totient is φ = 22651776.

The previous prime is 56158001. The next prime is 56158009. The reversal of 56158004 is 40085165.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56158001) 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, 58514 + ... + 59465.

It is an arithmetic number, because the mean of its divisors is an integer number (4955160).

Almost surely, 2^56158004 is an apocalyptic number.

It is an amenable number.

56158004 is an abundant number, since it is smaller than the sum of its proper divisors (62765836).

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

56158004 is a wasteful number, since it uses less digits than its factorization.

56158004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118007 (or 118005 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 56158004 is about 7493.8644236469. The cubic root of 56158004 is about 382.9457210265.

The spelling of 56158004 in words is "fifty-six million, one hundred fifty-eight thousand, four".