525107640 has 64 divisors (see below), whose sum is σ = 1629655200. Its totient is φ = 135199232.

The previous prime is 525107633. The next prime is 525107651. The reversal of 525107640 is 46701525.

525107640 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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 = 525107598 and 525107607.

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, 71967 + ... + 78926.

Almost surely, 2^525107640 is an apocalyptic number.

It is an amenable number.

525107640 is an abundant number, since it is smaller than the sum of its proper divisors (1104547560).

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

525107640 is a wasteful number, since it uses less digits than its factorization.

525107640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150936 (or 150932 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 525107640 is about 22915.2272517643. The cubic root of 525107640 is about 806.7694524065.

The spelling of 525107640 in words is "five hundred twenty-five million, one hundred seven thousand, six hundred forty".