51323525 has 24 divisors (see below), whose sum is σ = 69858624. Its totient is φ = 37094400.

The previous prime is 51323521. The next prime is 51323543. The reversal of 51323525 is 52532315.

It is not a de Polignac number, because 51323525 - 2² = 51323521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51323494 and 51323503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51323521) 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 23 ways as a sum of consecutive naturals, for example, 52592 + ... + 53558.

It is an arithmetic number, because the mean of its divisors is an integer number (2910776).

Almost surely, 2^51323525 is an apocalyptic number.

51323525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51323525 is a deficient number, since it is larger than the sum of its proper divisors (18535099).

51323525 is a wasteful number, since it uses less digits than its factorization.

51323525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181 (or 1176 counting only the distinct ones).

The product of its digits is 4500, while the sum is 26.

The square root of 51323525 is about 7164.0438999213. The cubic root of 51323525 is about 371.6254878287.

The spelling of 51323525 in words is "fifty-one million, three hundred twenty-three thousand, five hundred twenty-five".