51774525 has 96 divisors (see below), whose sum is σ = 109516800. Its totient is φ = 23716800.

The previous prime is 51774521. The next prime is 51774529. The reversal of 51774525 is 52547715.

It is an interprime number because it is at equal distance from previous prime (51774521) and next prime (51774529).

It is not a de Polignac number, because 51774525 - 2² = 51774521 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51774525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51774521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 140892 + ... + 141258.

It is an arithmetic number, because the mean of its divisors is an integer number (1140800).

Almost surely, 2^51774525 is an apocalyptic number.

51774525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51774525 is an abundant number, since it is smaller than the sum of its proper divisors (57742275).

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

51774525 is a wasteful number, since it uses less digits than its factorization.

51774525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 405 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 51774525 is about 7195.4516883932. The cubic root of 51774525 is about 372.7108546028.

The spelling of 51774525 in words is "fifty-one million, seven hundred seventy-four thousand, five hundred twenty-five".