25047288531 has 16 divisors (see below), whose sum is σ = 37109585920. Its totient is φ = 16697071080.

The previous prime is 25047288503. The next prime is 25047288559. The reversal of 25047288531 is 13588274052.

25047288531 is a `hidden beast` number, since 2 + 50 + 47 + 28 + 8 + 531 = 666.

It is an interprime number because it is at equal distance from previous prime (25047288503) and next prime (25047288559).

It is not a de Polignac number, because 25047288531 - 2¹⁴ = 25047272147 is a prime.

It is a super-2 number, since 2×25047288531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25047281531) 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, 646206 + ... + 683868.

It is an arithmetic number, because the mean of its divisors is an integer number (2319349120).

Almost surely, 2^25047288531 is an apocalyptic number.

25047288531 is a deficient number, since it is larger than the sum of its proper divisors (12062297389).

25047288531 is a wasteful number, since it uses less digits than its factorization.

25047288531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62303 (or 62297 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 25047288531 in words is "twenty-five billion, forty-seven million, two hundred eighty-eight thousand, five hundred thirty-one".