51477892 has 6 divisors (see below), whose sum is σ = 90086318. Its totient is φ = 25738944.

The previous prime is 51477847. The next prime is 51477931. The reversal of 51477892 is 29877415.

It can be written as a sum of positive squares in only one way, i.e., 39740416 + 11737476 = 6304^2 + 3426^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6434733 + ... + 6434740.

Almost surely, 2^51477892 is an apocalyptic number.

It is an amenable number.

51477892 is a deficient number, since it is larger than the sum of its proper divisors (38608426).

51477892 is a wasteful number, since it uses less digits than its factorization.

51477892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12869477 (or 12869475 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 51477892 is about 7174.8095445106. The cubic root of 51477892 is about 371.9976972147.

The spelling of 51477892 in words is "fifty-one million, four hundred seventy-seven thousand, eight hundred ninety-two".