51533080 has 32 divisors (see below), whose sum is σ = 116393040. Its totient is φ = 20534400.

The previous prime is 51533057. The next prime is 51533099. The reversal of 51533080 is 8033515.

It is a happy number.

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, 8755 + ... + 13405.

Almost surely, 2^51533080 is an apocalyptic number.

It is an amenable number.

51533080 is an abundant number, since it is smaller than the sum of its proper divisors (64859960).

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

51533080 is a wasteful number, since it uses less digits than its factorization.

51533080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939 (or 4935 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 51533080 is about 7178.6544700243. The cubic root of 51533080 is about 372.1305858264.

Adding to 51533080 its reverse (8033515), we get a palindrome (59566595).

The spelling of 51533080 in words is "fifty-one million, five hundred thirty-three thousand, eighty".