525073420890 has 24 divisors (see below), whose sum is σ = 1365190894548. Its totient is φ = 140019578880.

The previous prime is 525073420853. The next prime is 525073420891. The reversal of 525073420890 is 98024370525.

525073420890 is a `hidden beast` number, since 5 + 2 + 507 + 34 + 20 + 8 + 90 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 487037890161 + 38035530729 = 697881^2 + 195027^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (525073420891) 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, 2917074471 + ... + 2917074650.

Almost surely, 2^525073420890 is an apocalyptic number.

525073420890 is an abundant number, since it is smaller than the sum of its proper divisors (840117473658).

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

525073420890 is a wasteful number, since it uses less digits than its factorization.

525073420890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5834149134 (or 5834149131 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 525073420890 in words is "five hundred twenty-five billion, seventy-three million, four hundred twenty thousand, eight hundred ninety".