525733981 has 4 divisors (see below), whose sum is σ = 525846112. Its totient is φ = 525621852.

The previous prime is 525733973. The next prime is 525734003. The reversal of 525733981 is 189337525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 525733981 - 2³ = 525733973 is a prime.

It is a super-2 number, since 2×525733981² = 552792437556216722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525733951) 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, 48711 + ... + 58516.

It is an arithmetic number, because the mean of its divisors is an integer number (131461528).

Almost surely, 2^525733981 is an apocalyptic number.

It is an amenable number.

525733981 is a deficient number, since it is larger than the sum of its proper divisors (112131).

525733981 is a wasteful number, since it uses less digits than its factorization.

525733981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112130.

The product of its digits is 226800, while the sum is 43.

The square root of 525733981 is about 22928.8896591178. The cubic root of 525733981 is about 807.0900927033.

The spelling of 525733981 in words is "five hundred twenty-five million, seven hundred thirty-three thousand, nine hundred eighty-one".