51455948 has 24 divisors (see below), whose sum is σ = 91735728. Its totient is φ = 25249536.

The previous prime is 51455941. The next prime is 51455959. The reversal of 51455948 is 84955415.

It is not an unprimeable number, because it can be changed into a prime (51455941) 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, 91115 + ... + 91677.

It is an arithmetic number, because the mean of its divisors is an integer number (3822322).

Almost surely, 2^51455948 is an apocalyptic number.

It is an amenable number.

51455948 is a deficient number, since it is larger than the sum of its proper divisors (40279780).

51455948 is a wasteful number, since it uses less digits than its factorization.

51455948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 951 counting only the distinct ones).

The product of its digits is 144000, while the sum is 41.

The square root of 51455948 is about 7173.2801423059. The cubic root of 51455948 is about 371.9448312992.

The spelling of 51455948 in words is "fifty-one million, four hundred fifty-five thousand, nine hundred forty-eight".