56698140 has 24 divisors (see below), whose sum is σ = 158754960. Its totient is φ = 15119488.

The previous prime is 56698133. The next prime is 56698141. The reversal of 56698140 is 4189665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56698141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472425 + ... + 472544.

It is an arithmetic number, because the mean of its divisors is an integer number (6614790).

Almost surely, 2^56698140 is an apocalyptic number.

It is an amenable number.

56698140 is an abundant number, since it is smaller than the sum of its proper divisors (102056820).

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

56698140 is a wasteful number, since it uses less digits than its factorization.

56698140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944981 (or 944979 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 56698140 is about 7529.8167308375. The cubic root of 56698140 is about 384.1695486086.

The spelling of 56698140 in words is "fifty-six million, six hundred ninety-eight thousand, one hundred forty".