25248733938 has 16 divisors (see below), whose sum is σ = 56108297760. Its totient is φ = 8416244628.

The previous prime is 25248733907. The next prime is 25248733963. The reversal of 25248733938 is 83933784252.

25248733938 is a `hidden beast` number, since 2 + 5 + 248 + 7 + 3 + 393 + 8 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 467569147 = 25248733938 / (2 + 5 + 2 + 4 + 8 + 7 + 3 + 3 + 9 + 3 + 8).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233784520 + ... + 233784627.

It is an arithmetic number, because the mean of its divisors is an integer number (3506768610).

Almost surely, 2^25248733938 is an apocalyptic number.

25248733938 is an abundant number, since it is smaller than the sum of its proper divisors (30859563822).

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

25248733938 is a wasteful number, since it uses less digits than its factorization.

25248733938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467569158 (or 467569152 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 25248733938 in words is "twenty-five billion, two hundred forty-eight million, seven hundred thirty-three thousand, nine hundred thirty-eight".