525581040 has 80 divisors (see below), whose sum is σ = 1715068800. Its totient is φ = 132777216.

The previous prime is 525581033. The next prime is 525581051. The reversal of 525581040 is 40185525.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a junction number, because it is equal to n+sod(n) for n = 525580989 and 525581007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53070 + ... + 62189.

It is an arithmetic number, because the mean of its divisors is an integer number (21438360).

Almost surely, 2^525581040 is an apocalyptic number.

It is an amenable number.

525581040 is an abundant number, since it is smaller than the sum of its proper divisors (1189487760).

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

525581040 is a wasteful number, since it uses less digits than its factorization.

525581040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115294 (or 115288 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 525581040 is about 22925.5543008233. The cubic root of 525581040 is about 807.0118217260.

The spelling of 525581040 in words is "five hundred twenty-five million, five hundred eighty-one thousand, forty".