25472342137 has 16 divisors (see below), whose sum is σ = 28734927552. Its totient is φ = 22380621120.

The previous prime is 25472342131. The next prime is 25472342143. The reversal of 25472342137 is 73124327452.

It is an interprime number because it is at equal distance from previous prime (25472342131) and next prime (25472342143).

It is not a de Polignac number, because 25472342137 - 2¹⁹ = 25471817849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25472342137.

It is not an unprimeable number, because it can be changed into a prime (25472342131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286998 + ... + 365119.

It is an arithmetic number, because the mean of its divisors is an integer number (1795932972).

Almost surely, 2^25472342137 is an apocalyptic number.

It is an amenable number.

25472342137 is a deficient number, since it is larger than the sum of its proper divisors (3262585415).

25472342137 is a wasteful number, since it uses less digits than its factorization.

25472342137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652248.

The product of its digits is 282240, while the sum is 40.

Adding to 25472342137 its reverse (73124327452), we get a palindrome (98596669589).

The spelling of 25472342137 in words is "twenty-five billion, four hundred seventy-two million, three hundred forty-two thousand, one hundred thirty-seven".