525670253 has 4 divisors (see below), whose sum is σ = 526141980. Its totient is φ = 525198528.

The previous prime is 525670219. The next prime is 525670261. The reversal of 525670253 is 352076525.

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

It can be written as a sum of positive squares in 2 ways, for example, as 131171209 + 394499044 = 11453^2 + 19862^2 .

It is a cyclic number.

It is not a de Polignac number, because 525670253 - 2²⁰ = 524621677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525672253) 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, 234188 + ... + 236421.

It is an arithmetic number, because the mean of its divisors is an integer number (131535495).

Almost surely, 2^525670253 is an apocalyptic number.

It is an amenable number.

525670253 is a deficient number, since it is larger than the sum of its proper divisors (471727).

525670253 is a wasteful number, since it uses less digits than its factorization.

525670253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471726.

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 525670253 is about 22927.4999291244. The cubic root of 525670253 is about 807.0574803190.

The spelling of 525670253 in words is "five hundred twenty-five million, six hundred seventy thousand, two hundred fifty-three".