51862855 has 16 divisors (see below), whose sum is σ = 69341184. Its totient is φ = 36914080.

The previous prime is 51862843. The next prime is 51862879. The reversal of 51862855 is 55826815.

It is not a de Polignac number, because 51862855 - 2¹⁵ = 51830087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7447 + ... + 12616.

It is an arithmetic number, because the mean of its divisors is an integer number (4333824).

Almost surely, 2^51862855 is an apocalyptic number.

51862855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51862855 is a deficient number, since it is larger than the sum of its proper divisors (17478329).

51862855 is a wasteful number, since it uses less digits than its factorization.

51862855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20126.

The product of its digits is 96000, while the sum is 40.

The square root of 51862855 is about 7201.5869778820. The cubic root of 51862855 is about 372.9226888048.

The spelling of 51862855 in words is "fifty-one million, eight hundred sixty-two thousand, eight hundred fifty-five".