525354420 has 48 divisors (see below), whose sum is σ = 1477344960. Its totient is φ = 139489536.

The previous prime is 525354419. The next prime is 525354421. The reversal of 525354420 is 24453525.

It is an interprime number because it is at equal distance from previous prime (525354419) and next prime (525354421).

It is a super-2 number, since 2×525354420² = 551994533227072800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525354421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4810 + ... + 32769.

It is an arithmetic number, because the mean of its divisors is an integer number (30778020).

Almost surely, 2^525354420 is an apocalyptic number.

It is an amenable number.

525354420 is an abundant number, since it is smaller than the sum of its proper divisors (951990540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525354420 is a wasteful number, since it uses less digits than its factorization.

525354420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37824 (or 37822 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 525354420 is about 22920.6112483939. The cubic root of 525354420 is about 806.8958159490.

The spelling of 525354420 in words is "five hundred twenty-five million, three hundred fifty-four thousand, four hundred twenty".