51625475 has 24 divisors (see below), whose sum is σ = 70227648. Its totient is φ = 37335200.

The previous prime is 51625463. The next prime is 51625477. The reversal of 51625475 is 57452615.

51625475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51625475 - 2¹⁴ = 51609091 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51625477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62012 + ... + 62838.

It is an arithmetic number, because the mean of its divisors is an integer number (2926152).

Almost surely, 2^51625475 is an apocalyptic number.

51625475 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51625475 is a deficient number, since it is larger than the sum of its proper divisors (18602173).

51625475 is a wasteful number, since it uses less digits than its factorization.

51625475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1070 counting only the distinct ones).

The product of its digits is 42000, while the sum is 35.

The square root of 51625475 is about 7185.0869862515. The cubic root of 51625475 is about 372.3528539125.

It can be divided in two parts, 51 and 625475, that added together give a palindrome (625526).

The spelling of 51625475 in words is "fifty-one million, six hundred twenty-five thousand, four hundred seventy-five".