56429557 has 4 divisors (see below), whose sum is σ = 58883040. Its totient is φ = 53976076.

The previous prime is 56429539. The next prime is 56429561. The reversal of 56429557 is 75592465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56429557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56429567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226707 + ... + 1226752.

It is an arithmetic number, because the mean of its divisors is an integer number (14720760).

Almost surely, 2^56429557 is an apocalyptic number.

It is an amenable number.

56429557 is a deficient number, since it is larger than the sum of its proper divisors (2453483).

56429557 is a wasteful number, since it uses less digits than its factorization.

56429557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453482.

The product of its digits is 378000, while the sum is 43.

The square root of 56429557 is about 7511.9609290784. The cubic root of 56429557 is about 383.5619756746.

The spelling of 56429557 in words is "fifty-six million, four hundred twenty-nine thousand, five hundred fifty-seven".