51453525 has 24 divisors (see below), whose sum is σ = 85735584. Its totient is φ = 27227200.

The previous prime is 51453517. The next prime is 51453527. The reversal of 51453525 is 52535415.

It is a happy number.

It is not a de Polignac number, because 51453525 - 2³ = 51453517 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51453492 and 51453501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51453527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7207 + ... + 12443.

It is an arithmetic number, because the mean of its divisors is an integer number (3572316).

Almost surely, 2^51453525 is an apocalyptic number.

It is an amenable number.

51453525 is a deficient number, since it is larger than the sum of its proper divisors (34282059).

51453525 is a wasteful number, since it uses less digits than its factorization.

51453525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381 (or 5376 counting only the distinct ones).

The product of its digits is 15000, while the sum is 30.

The square root of 51453525 is about 7173.1112496601. Note that the first 3 decimals coincide. The cubic root of 51453525 is about 371.9389930595.

The spelling of 51453525 in words is "fifty-one million, four hundred fifty-three thousand, five hundred twenty-five".