51289152 has 28 divisors (see below), whose sum is σ = 135703056. Its totient is φ = 17096320.

The previous prime is 51289129. The next prime is 51289201. The reversal of 51289152 is 25198215.

It is a super-2 number, since 2×51289152² = 5261154225758208, which contains 22 as substring.

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, 133374 + ... + 133757.

Almost surely, 2^51289152 is an apocalyptic number.

It is an amenable number.

51289152 is an abundant number, since it is smaller than the sum of its proper divisors (84413904).

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

51289152 is a wasteful number, since it uses less digits than its factorization.

51289152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267146 (or 267136 counting only the distinct ones).

The product of its digits is 7200, while the sum is 33.

The square root of 51289152 is about 7161.6445038832. The cubic root of 51289152 is about 371.5425061574.

The spelling of 51289152 in words is "fifty-one million, two hundred eighty-nine thousand, one hundred fifty-two".