51544956 has 12 divisors (see below), whose sum is σ = 120271592. Its totient is φ = 17181648.

The previous prime is 51544949. The next prime is 51544957. The reversal of 51544956 is 65944515.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51544957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2147695 + ... + 2147718.

Almost surely, 2^51544956 is an apocalyptic number.

It is an amenable number.

51544956 is an abundant number, since it is smaller than the sum of its proper divisors (68726636).

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

51544956 is a wasteful number, since it uses less digits than its factorization.

51544956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295420 (or 4295418 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 51544956 is about 7179.4815968843. The cubic root of 51544956 is about 372.1591699475.

The spelling of 51544956 in words is "fifty-one million, five hundred forty-four thousand, nine hundred fifty-six".