25231408145 has 16 divisors (see below), whose sum is σ = 30631927872. Its totient is φ = 19950338880.

The previous prime is 25231408133. The next prime is 25231408199. The reversal of 25231408145 is 54180413252.

It is not a de Polignac number, because 25231408145 - 2¹⁴ = 25231391761 is a prime.

It is a Duffinian number.

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, 61994 + ... + 233036.

It is an arithmetic number, because the mean of its divisors is an integer number (1914495492).

Almost surely, 2^25231408145 is an apocalyptic number.

It is an amenable number.

25231408145 is a deficient number, since it is larger than the sum of its proper divisors (5400519727).

25231408145 is a wasteful number, since it uses less digits than its factorization.

25231408145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171392.

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 25231408145 in words is "twenty-five billion, two hundred thirty-one million, four hundred eight thousand, one hundred forty-five".