51140056 has 16 divisors (see below), whose sum is σ = 104604840. Its totient is φ = 23245440.

The previous prime is 51140009. The next prime is 51140069. The reversal of 51140056 is 65004115.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290481 + ... + 290656.

Almost surely, 2^51140056 is an apocalyptic number.

It is an amenable number.

51140056 is an abundant number, since it is smaller than the sum of its proper divisors (53464784).

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

51140056 is a wasteful number, since it uses less digits than its factorization.

51140056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581154 (or 581150 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 51140056 is about 7151.2275869252. The cubic root of 51140056 is about 371.1821358265.

The spelling of 51140056 in words is "fifty-one million, one hundred forty thousand, fifty-six".