51377364 has 36 divisors (see below), whose sum is σ = 130463424. Its totient is φ = 17047632.

The previous prime is 51377363. The next prime is 51377399. The reversal of 51377364 is 46377315.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51377363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5029 + ... + 11315.

It is an arithmetic number, because the mean of its divisors is an integer number (3623984).

Almost surely, 2^51377364 is an apocalyptic number.

It is an amenable number.

51377364 is an abundant number, since it is smaller than the sum of its proper divisors (79086060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51377364 is a wasteful number, since it uses less digits than its factorization.

51377364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6524 (or 6519 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 51377364 is about 7167.8004994559. The cubic root of 51377364 is about 371.7553889642.

It can be divided in two parts, 513 and 77364, that added together give a palindrome (77877).

The spelling of 51377364 in words is "fifty-one million, three hundred seventy-seven thousand, three hundred sixty-four".