25702547948 has 24 divisors (see below), whose sum is σ = 56078287104. Its totient is φ = 10013979600.

The previous prime is 25702547947. The next prime is 25702547951. The reversal of 25702547948 is 84974520752.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25702547948.

It is not an unprimeable number, because it can be changed into a prime (25702547947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41724608 + ... + 41725223.

It is an arithmetic number, because the mean of its divisors is an integer number (2336595296).

Almost surely, 2^25702547948 is an apocalyptic number.

25702547948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25702547948 is an abundant number, since it is smaller than the sum of its proper divisors (30375739156).

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

25702547948 is a wasteful number, since it uses less digits than its factorization.

25702547948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83449853 (or 83449851 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 53.

The spelling of 25702547948 in words is "twenty-five billion, seven hundred two million, five hundred forty-seven thousand, nine hundred forty-eight".