51626255 has 4 divisors (see below), whose sum is σ = 61951512. Its totient is φ = 41301000.

The previous prime is 51626233. The next prime is 51626261. The reversal of 51626255 is 55262615.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51626255 - 2⁸ = 51625999 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 5162621 + ... + 5162630.

It is an arithmetic number, because the mean of its divisors is an integer number (15487878).

Almost surely, 2^51626255 is an apocalyptic number.

51626255 is a deficient number, since it is larger than the sum of its proper divisors (10325257).

51626255 is a wasteful number, since it uses less digits than its factorization.

51626255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10325256.

The product of its digits is 18000, while the sum is 32.

The square root of 51626255 is about 7185.1412651388. The cubic root of 51626255 is about 372.3547291738.

The spelling of 51626255 in words is "fifty-one million, six hundred twenty-six thousand, two hundred fifty-five".