51899148 has 36 divisors (see below), whose sum is σ = 149931600. Its totient is φ = 14828256.

The previous prime is 51899143. The next prime is 51899149. The reversal of 51899148 is 84199815.

51899148 is a `hidden beast` number, since 518 + 9 + 91 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (51899143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102723 + ... + 103226.

Almost surely, 2^51899148 is an apocalyptic number.

It is an amenable number.

51899148 is an abundant number, since it is smaller than the sum of its proper divisors (98032452).

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

51899148 is a wasteful number, since it uses less digits than its factorization.

51899148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205966 (or 205961 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 51899148 is about 7204.1063290321. The cubic root of 51899148 is about 373.0096574537.

The spelling of 51899148 in words is "fifty-one million, eight hundred ninety-nine thousand, one hundred forty-eight".