25552025490 has 64 divisors (see below), whose sum is σ = 64710316800. Its totient is φ = 6444370944.

The previous prime is 25552025489. The next prime is 25552025537. The reversal of 25552025490 is 9452025552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146635 + ... + 269454.

It is an arithmetic number, because the mean of its divisors is an integer number (1011098700).

Almost surely, 2^25552025490 is an apocalyptic number.

25552025490 is an abundant number, since it is smaller than the sum of its proper divisors (39158291310).

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

25552025490 is a wasteful number, since it uses less digits than its factorization.

25552025490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416211.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 25552025490 in words is "twenty-five billion, five hundred fifty-two million, twenty-five thousand, four hundred ninety".