51517468 has 24 divisors (see below), whose sum is σ = 92906352. Its totient is φ = 24977664.

The previous prime is 51517457. The next prime is 51517471. The reversal of 51517468 is 86471515.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 86580 + ... + 87172.

It is an arithmetic number, because the mean of its divisors is an integer number (3871098).

Almost surely, 2^51517468 is an apocalyptic number.

It is an amenable number.

51517468 is a deficient number, since it is larger than the sum of its proper divisors (41388884).

51517468 is a wasteful number, since it uses less digits than its factorization.

51517468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221 (or 1219 counting only the distinct ones).

The product of its digits is 33600, while the sum is 37.

The square root of 51517468 is about 7177.5669972491. The cubic root of 51517468 is about 372.0930029153.

The spelling of 51517468 in words is "fifty-one million, five hundred seventeen thousand, four hundred sixty-eight".