51377076 has 18 divisors (see below), whose sum is σ = 129869922. Its totient is φ = 17125680.

The previous prime is 51377071. The next prime is 51377089. The reversal of 51377076 is 67077315.

51377076 is a `hidden beast` number, since 513 + 7 + 70 + 76 = 666.

It can be written as a sum of positive squares in only one way, i.e., 43956900 + 7420176 = 6630^2 + 2724^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1427141 = 51377076 / (5 + 1 + 3 + 7 + 7 + 0 + 7 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 51377076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51377071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 713535 + ... + 713606.

Almost surely, 2^51377076 is an apocalyptic number.

It is an amenable number.

51377076 is an abundant number, since it is smaller than the sum of its proper divisors (78492846).

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

51377076 is a wasteful number, since it uses less digits than its factorization.

51377076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427151 (or 1427146 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 36.

The square root of 51377076 is about 7167.7804095829. The cubic root of 51377076 is about 371.7546943279.

The spelling of 51377076 in words is "fifty-one million, three hundred seventy-seven thousand, seventy-six".