525466021 has 8 divisors (see below), whose sum is σ = 532274688. Its totient is φ = 518700000.

The previous prime is 525466013. The next prime is 525466031. The reversal of 525466021 is 120664525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 525466021 - 2³ = 525466013 is a prime.

It is a super-2 number, since 2×525466021² = 552229078451144882, 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 (525466031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14521 + ... + 35521.

It is an arithmetic number, because the mean of its divisors is an integer number (66534336).

Almost surely, 2^525466021 is an apocalyptic number.

It is an amenable number.

525466021 is a deficient number, since it is larger than the sum of its proper divisors (6808667).

525466021 is a wasteful number, since it uses less digits than its factorization.

525466021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21323.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 525466021 is about 22923.0456309802. The cubic root of 525466021 is about 806.9529481762.

The spelling of 525466021 in words is "five hundred twenty-five million, four hundred sixty-six thousand, twenty-one".