51851548 has 12 divisors (see below), whose sum is σ = 103703152. Its totient is φ = 22222080.

The previous prime is 51851533. The next prime is 51851557. The reversal of 51851548 is 84515815.

51851548 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925893 + ... + 925948.

Almost surely, 2^51851548 is an apocalyptic number.

It is an amenable number.

51851548 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51851548 is a wasteful number, since it uses less digits than its factorization.

51851548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851852 (or 1851850 counting only the distinct ones).

The product of its digits is 32000, while the sum is 37.

The square root of 51851548 is about 7200.8018997887. The cubic root of 51851548 is about 372.8955856349.

The spelling of 51851548 in words is "fifty-one million, eight hundred fifty-one thousand, five hundred forty-eight".