51898752 has 64 divisors (see below), whose sum is σ = 153183600. Its totient is φ = 17298432.

The previous prime is 51898729. The next prime is 51898771. The reversal of 51898752 is 25789815.

It is a happy number.

51898752 is a `hidden beast` number, since 518 + 9 + 87 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 51898698 and 51898707.

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, 4053 + ... + 10964.

Almost surely, 2^51898752 is an apocalyptic number.

It is an amenable number.

51898752 is an abundant number, since it is smaller than the sum of its proper divisors (101284848).

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

51898752 is a wasteful number, since it uses less digits than its factorization.

51898752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15040 (or 15022 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The square root of 51898752 is about 7204.0788446546. The cubic root of 51898752 is about 373.0087087406.

It can be divided in two parts, 51898 and 752, that added together give a triangular number (52650 = T₃₂₄).

The spelling of 51898752 in words is "fifty-one million, eight hundred ninety-eight thousand, seven hundred fifty-two".