51625776 has 20 divisors (see below), whose sum is σ = 133366712. Its totient is φ = 17208576.

The previous prime is 51625729. The next prime is 51625781. The reversal of 51625776 is 67752615.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537721 + ... + 537816.

Almost surely, 2^51625776 is an apocalyptic number.

It is an amenable number.

51625776 is an abundant number, since it is smaller than the sum of its proper divisors (81740936).

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

51625776 is a wasteful number, since it uses less digits than its factorization.

51625776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075548 (or 1075542 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The square root of 51625776 is about 7185.1079323835. The cubic root of 51625776 is about 372.3535775733.

The spelling of 51625776 in words is "fifty-one million, six hundred twenty-five thousand, seven hundred seventy-six".