51862388 has 6 divisors (see below), whose sum is σ = 90759186. Its totient is φ = 25931192.

The previous prime is 51862387. The next prime is 51862397. The reversal of 51862388 is 88326815.

It can be written as a sum of positive squares in only one way, i.e., 34904464 + 16957924 = 5908^2 + 4118^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51862387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6482795 + ... + 6482802.

It is an arithmetic number, because the mean of its divisors is an integer number (15126531).

Almost surely, 2^51862388 is an apocalyptic number.

It is an amenable number.

51862388 is a deficient number, since it is larger than the sum of its proper divisors (38896798).

51862388 is a wasteful number, since it uses less digits than its factorization.

51862388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12965601 (or 12965599 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 51862388 is about 7201.5545544000. The cubic root of 51862388 is about 372.9215694718.

The spelling of 51862388 in words is "fifty-one million, eight hundred sixty-two thousand, three hundred eighty-eight".