25520520230 has 32 divisors (see below), whose sum is σ = 47202549984. Its totient is φ = 9927242496.

The previous prime is 25520520211. The next prime is 25520520239. The reversal of 25520520230 is 3202502552.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25520520230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25520520239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754154 + ... + 787266.

It is an arithmetic number, because the mean of its divisors is an integer number (1475079687).

Almost surely, 2^25520520230 is an apocalyptic number.

25520520230 is a deficient number, since it is larger than the sum of its proper divisors (21682029754).

25520520230 is a wasteful number, since it uses less digits than its factorization.

25520520230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35240.

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

The spelling of 25520520230 in words is "twenty-five billion, five hundred twenty million, five hundred twenty thousand, two hundred thirty".