56420146 has 4 divisors (see below), whose sum is σ = 84630222. Its totient is φ = 28210072.

The previous prime is 56420099. The next prime is 56420149. The reversal of 56420146 is 64102465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52056225 + 4363921 = 7215^2 + 2089^2 .

It is a super-2 number, since 2×56420146² = 6366465749322632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56420149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14105035 + ... + 14105038.

Almost surely, 2^56420146 is an apocalyptic number.

56420146 is a deficient number, since it is larger than the sum of its proper divisors (28210076).

56420146 is a wasteful number, since it uses less digits than its factorization.

56420146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28210075.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 56420146 is about 7511.3345019377. The cubic root of 56420146 is about 383.5406517288.

The spelling of 56420146 in words is "fifty-six million, four hundred twenty thousand, one hundred forty-six".