525977628 has 24 divisors (see below), whose sum is σ = 1338852480. Its totient is φ = 159387120.

The previous prime is 525977623. The next prime is 525977633. The reversal of 525977628 is 826779525.

It is an interprime number because it is at equal distance from previous prime (525977623) and next prime (525977633).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525977623) 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, 1992208 + ... + 1992471.

It is an arithmetic number, because the mean of its divisors is an integer number (55785520).

Almost surely, 2^525977628 is an apocalyptic number.

It is an amenable number.

525977628 is an abundant number, since it is smaller than the sum of its proper divisors (812874852).

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

525977628 is a wasteful number, since it uses less digits than its factorization.

525977628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984697 (or 3984695 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 525977628 is about 22934.2021443956. The cubic root of 525977628 is about 807.2147531570.

The spelling of 525977628 in words is "five hundred twenty-five million, nine hundred seventy-seven thousand, six hundred twenty-eight".