56909146 has 16 divisors (see below), whose sum is σ = 97657920. Its totient is φ = 24364800.

The previous prime is 56909143. The next prime is 56909159. The reversal of 56909146 is 64190965.

It is a junction number, because it is equal to n+sod(n) for n = 56909099 and 56909108.

It is not an unprimeable number, because it can be changed into a prime (56909141) 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, 21145 + ... + 23683.

It is an arithmetic number, because the mean of its divisors is an integer number (6103620).

Almost surely, 2^56909146 is an apocalyptic number.

56909146 is a deficient number, since it is larger than the sum of its proper divisors (40748774).

56909146 is a wasteful number, since it uses less digits than its factorization.

56909146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4149.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 56909146 is about 7543.8150825693. The cubic root of 56909146 is about 384.6455297008.

The spelling of 56909146 in words is "fifty-six million, nine hundred nine thousand, one hundred forty-six".