51625755 has 40 divisors (see below), whose sum is σ = 97429200. Its totient is φ = 26080704.

The previous prime is 51625729. The next prime is 51625781. The reversal of 51625755 is 55752615.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51625729) and next prime (51625781).

It is not a de Polignac number, because 51625755 - 2⁵ = 51625723 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4341 + ... + 11049.

It is an arithmetic number, because the mean of its divisors is an integer number (2435730).

Almost surely, 2^51625755 is an apocalyptic number.

51625755 is a deficient number, since it is larger than the sum of its proper divisors (45803445).

51625755 is a wasteful number, since it uses less digits than its factorization.

51625755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745 (or 6736 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 51625755 is about 7185.1064710274. The cubic root of 51625755 is about 372.3535270854.

The spelling of 51625755 in words is "fifty-one million, six hundred twenty-five thousand, seven hundred fifty-five".