525550531 has 4 divisors (see below), whose sum is σ = 573327864. Its totient is φ = 477773200.

The previous prime is 525550513. The next prime is 525550541. The reversal of 525550531 is 135055525.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 525550531 - 2²⁷ = 391332803 is a prime.

It is a super-2 number, since 2×525550531² = 552406721268763922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525550493 and 525550502.

It is not an unprimeable number, because it can be changed into a prime (525550541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23888650 + ... + 23888671.

It is an arithmetic number, because the mean of its divisors is an integer number (143331966).

Almost surely, 2^525550531 is an apocalyptic number.

525550531 is a deficient number, since it is larger than the sum of its proper divisors (47777333).

525550531 is a wasteful number, since it uses less digits than its factorization.

525550531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47777332.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 525550531 is about 22924.8888983131. Note that the first 4 decimals coincide. The cubic root of 525550531 is about 806.9962062463.

The spelling of 525550531 in words is "five hundred twenty-five million, five hundred fifty thousand, five hundred thirty-one".