56421370 has 16 divisors (see below), whose sum is σ = 103075488. Its totient is φ = 22231440.

The previous prime is 56421367. The next prime is 56421373. The reversal of 56421370 is 7312465.

It is an interprime number because it is at equal distance from previous prime (56421367) and next prime (56421373).

It is not an unprimeable number, because it can be changed into a prime (56421373) 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, 41436 + ... + 42775.

It is an arithmetic number, because the mean of its divisors is an integer number (6442218).

Almost surely, 2^56421370 is an apocalyptic number.

56421370 is a deficient number, since it is larger than the sum of its proper divisors (46654118).

56421370 is a wasteful number, since it uses less digits than its factorization.

56421370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84285.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 56421370 is about 7511.4159783625. The cubic root of 56421370 is about 383.5434252674.

The spelling of 56421370 in words is "fifty-six million, four hundred twenty-one thousand, three hundred seventy".