51903525 has 24 divisors (see below), whose sum is σ = 89547840. Its totient is φ = 26477440.

The previous prime is 51903487. The next prime is 51903541. The reversal of 51903525 is 52530915.

It is not a de Polignac number, because 51903525 - 2²⁰ = 50854949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51903492 and 51903501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13320 + ... + 16769.

It is an arithmetic number, because the mean of its divisors is an integer number (3731160).

Almost surely, 2^51903525 is an apocalyptic number.

It is an amenable number.

51903525 is a deficient number, since it is larger than the sum of its proper divisors (37644315).

51903525 is a wasteful number, since it uses less digits than its factorization.

51903525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30125 (or 30120 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 51903525 is about 7204.4101077049. The cubic root of 51903525 is about 373.0201432866.

The spelling of 51903525 in words is "fifty-one million, nine hundred three thousand, five hundred twenty-five".