51155052 has 24 divisors (see below), whose sum is σ = 128543856. Its totient is φ = 15739968.

The previous prime is 51155047. The next prime is 51155063. The reversal of 51155052 is 25055115.

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, 163803 + ... + 164114.

It is an arithmetic number, because the mean of its divisors is an integer number (5355994).

Almost surely, 2^51155052 is an apocalyptic number.

51155052 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51155052 is an abundant number, since it is smaller than the sum of its proper divisors (77388804).

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

51155052 is a wasteful number, since it uses less digits than its factorization.

51155052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327937 (or 327935 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 51155052 is about 7152.2760013859. The cubic root of 51155052 is about 371.2184133473.

The spelling of 51155052 in words is "fifty-one million, one hundred fifty-five thousand, fifty-two".