525421325 has 72 divisors (see below), whose sum is σ = 797948928. Its totient is φ = 340560000.

The previous prime is 525421301. The next prime is 525421339. The reversal of 525421325 is 523124525.

It is not a de Polignac number, because 525421325 - 2⁸ = 525421069 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1218860 + ... + 1219290.

It is an arithmetic number, because the mean of its divisors is an integer number (11082624).

Almost surely, 2^525421325 is an apocalyptic number.

525421325 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

525421325 is a deficient number, since it is larger than the sum of its proper divisors (272527603).

525421325 is a wasteful number, since it uses less digits than its factorization.

525421325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 491 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 525421325 is about 22922.0706961653. The cubic root of 525421325 is about 806.9300677930.

The spelling of 525421325 in words is "five hundred twenty-five million, four hundred twenty-one thousand, three hundred twenty-five".