51185468 has 18 divisors (see below), whose sum is σ = 94539816. Its totient is φ = 24245064.

The previous prime is 51185441. The next prime is 51185479. The reversal of 51185468 is 86458115.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16280 + ... + 19167.

It is an arithmetic number, because the mean of its divisors is an integer number (5252212).

Almost surely, 2^51185468 is an apocalyptic number.

It is an amenable number.

51185468 is a deficient number, since it is larger than the sum of its proper divisors (43354348).

51185468 is a wasteful number, since it uses less digits than its factorization.

51185468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35489 (or 35468 counting only the distinct ones).

The product of its digits is 38400, while the sum is 38.

The square root of 51185468 is about 7154.4020015652. The cubic root of 51185468 is about 371.2919723393.

The spelling of 51185468 in words is "fifty-one million, one hundred eighty-five thousand, four hundred sixty-eight".