25545026830 has 16 divisors (see below), whose sum is σ = 46563088320. Its totient is φ = 10088668512.

The previous prime is 25545026803. The next prime is 25545026833. The reversal of 25545026830 is 3862054552.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25545026833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16166949 + ... + 16168528.

It is an arithmetic number, because the mean of its divisors is an integer number (2910193020).

Almost surely, 2^25545026830 is an apocalyptic number.

25545026830 is a deficient number, since it is larger than the sum of its proper divisors (21018061490).

25545026830 is a wasteful number, since it uses less digits than its factorization.

25545026830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32335563.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 25545026830 in words is "twenty-five billion, five hundred forty-five million, twenty-six thousand, eight hundred thirty".