523540025 has 12 divisors (see below), whose sum is σ = 653864400. Its totient is φ = 415816080.

The previous prime is 523540021. The next prime is 523540027. The reversal of 523540025 is 520045325.

It is not a de Polignac number, because 523540025 - 2² = 523540021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 523539976 and 523540003.

It is not an unprimeable number, because it can be changed into a prime (523540021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71855 + ... + 78804.

It is an arithmetic number, because the mean of its divisors is an integer number (54488700).

Almost surely, 2^523540025 is an apocalyptic number.

It is an amenable number.

523540025 is a deficient number, since it is larger than the sum of its proper divisors (130324375).

523540025 is a wasteful number, since it uses less digits than its factorization.

523540025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150808 (or 150803 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 523540025 is about 22880.9970281017. The cubic root of 523540025 is about 805.9658301864.

The spelling of 523540025 in words is "five hundred twenty-three million, five hundred forty thousand, twenty-five".