51318948 has 12 divisors (see below), whose sum is σ = 119744240. Its totient is φ = 17106312.

The previous prime is 51318931. The next prime is 51318973. The reversal of 51318948 is 84981315.

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

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, 2138278 + ... + 2138301.

Almost surely, 2^51318948 is an apocalyptic number.

It is an amenable number.

51318948 is an abundant number, since it is smaller than the sum of its proper divisors (68425292).

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

51318948 is a wasteful number, since it uses less digits than its factorization.

51318948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4276586 (or 4276584 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 51318948 is about 7163.7244503121. The cubic root of 51318948 is about 371.6144403905.

The spelling of 51318948 in words is "fifty-one million, three hundred eighteen thousand, nine hundred forty-eight".