51377315 has 16 divisors (see below), whose sum is σ = 71215200. Its totient is φ = 35166720.

The previous prime is 51377269. The next prime is 51377317.

51377315 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51377315 - 2¹⁰ = 51376291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51377317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26540 + ... + 28409.

It is an arithmetic number, because the mean of its divisors is an integer number (4450950).

Almost surely, 2^51377315 is an apocalyptic number.

51377315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51377315 is a deficient number, since it is larger than the sum of its proper divisors (19837885).

51377315 is a wasteful number, since it uses less digits than its factorization.

51377315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54982.

The product of its digits is 11025, while the sum is 32.

The square root of 51377315 is about 7167.7970813912. The cubic root of 51377315 is about 371.7552707797.

The spelling of 51377315 in words is "fifty-one million, three hundred seventy-seven thousand, three hundred fifteen".