25140233545 has 16 divisors (see below), whose sum is σ = 35666933760. Its totient is φ = 16644567744.

The previous prime is 25140233533. The next prime is 25140233557. The reversal of 25140233545 is 54533204152.

It is an interprime number because it is at equal distance from previous prime (25140233533) and next prime (25140233557).

It is not a de Polignac number, because 25140233545 - 2²⁹ = 24603362633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25140233545.

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, 12383337 + ... + 12385366.

It is an arithmetic number, because the mean of its divisors is an integer number (2229183360).

Almost surely, 2^25140233545 is an apocalyptic number.

It is an amenable number.

25140233545 is a deficient number, since it is larger than the sum of its proper divisors (10526700215).

25140233545 is a wasteful number, since it uses less digits than its factorization.

25140233545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24768744.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 25140233545 its reverse (54533204152), we get a palindrome (79673437697).

The spelling of 25140233545 in words is "twenty-five billion, one hundred forty million, two hundred thirty-three thousand, five hundred forty-five".