25214002251 has 32 divisors (see below), whose sum is σ = 36526629888. Its totient is φ = 15410250240.

The previous prime is 25214002249. The next prime is 25214002273. The reversal of 25214002251 is 15220041252.

It is not a de Polignac number, because 25214002251 - 2¹ = 25214002249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25214002201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 480841 + ... + 530693.

It is an arithmetic number, because the mean of its divisors is an integer number (1141457184).

Almost surely, 2^25214002251 is an apocalyptic number.

25214002251 is a deficient number, since it is larger than the sum of its proper divisors (11312627637).

25214002251 is a wasteful number, since it uses less digits than its factorization.

25214002251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50131.

The product of its (nonzero) digits is 1600, while the sum is 24.

The spelling of 25214002251 in words is "twenty-five billion, two hundred fourteen million, two thousand, two hundred fifty-one".