25140251214 has 48 divisors (see below), whose sum is σ = 59908709952. Its totient is φ = 7570874304.

The previous prime is 25140251209. The next prime is 25140251221. The reversal of 25140251214 is 41215204152.

It is a happy number.

25140251214 is a `hidden beast` number, since 2 + 5 + 140 + 2 + 512 + 1 + 4 = 666.

It is a super-2 number, since 2×25140251214² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1131949 + ... + 1153944.

It is an arithmetic number, because the mean of its divisors is an integer number (1248098124).

Almost surely, 2^25140251214 is an apocalyptic number.

25140251214 is an abundant number, since it is smaller than the sum of its proper divisors (34768458738).

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

25140251214 is a wasteful number, since it uses less digits than its factorization.

25140251214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285961 (or 2285958 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 25140251214 its reverse (41215204152), we get a palindrome (66355455366).

The spelling of 25140251214 in words is "twenty-five billion, one hundred forty million, two hundred fifty-one thousand, two hundred fourteen".