51154368 has 56 divisors (see below), whose sum is σ = 136288272. Its totient is φ = 16932864.

The previous prime is 51154349. The next prime is 51154409. The reversal of 51154368 is 86345115.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29296 + ... + 30992.

Almost surely, 2^51154368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51154368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68144136).

51154368 is an abundant number, since it is smaller than the sum of its proper divisors (85133904).

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

51154368 is a wasteful number, since it uses less digits than its factorization.

51154368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869 (or 1859 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 51154368 is about 7152.2281842794. The cubic root of 51154368 is about 371.2167588054.

The spelling of 51154368 in words is "fifty-one million, one hundred fifty-four thousand, three hundred sixty-eight".