25025502530 has 32 divisors (see below), whose sum is σ = 51508220544. Its totient is φ = 8575641216.

The previous prime is 25025502517. The next prime is 25025502559. The reversal of 25025502530 is 3520552052.

It is a junction number, because it is equal to n+sod(n) for n = 25025502493 and 25025502502.

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, 40469 + ... + 227351.

It is an arithmetic number, because the mean of its divisors is an integer number (1609631892).

Almost surely, 2^25025502530 is an apocalyptic number.

25025502530 is an abundant number, since it is smaller than the sum of its proper divisors (26482718014).

25025502530 is a wasteful number, since it uses less digits than its factorization.

25025502530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188810.

The product of its (nonzero) digits is 15000, while the sum is 29.

The spelling of 25025502530 in words is "twenty-five billion, twenty-five million, five hundred two thousand, five hundred thirty".