51955072 has 32 divisors (see below), whose sum is σ = 111469680. Its totient is φ = 23978496.

The previous prime is 51955019. The next prime is 51955073. The reversal of 51955072 is 27055915.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51955073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13948 + ... + 17275.

Almost surely, 2^51955072 is an apocalyptic number.

51955072 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51955072 is an abundant number, since it is smaller than the sum of its proper divisors (59514608).

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

51955072 is a wasteful number, since it uses less digits than its factorization.

51955072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31250 (or 31238 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 51955072 is about 7207.9866814527. The cubic root of 51955072 is about 373.1435883866.

The spelling of 51955072 in words is "fifty-one million, nine hundred fifty-five thousand, seventy-two".