25156463241 has 24 divisors (see below), whose sum is σ = 42019590144. Its totient is φ = 13269342240.

The previous prime is 25156463237. The next prime is 25156463243. The reversal of 25156463241 is 14236465152.

It is not a de Polignac number, because 25156463241 - 2² = 25156463237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 25156463241.

It is not an unprimeable number, because it can be changed into a prime (25156463243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6580105 + ... + 6583926.

It is an arithmetic number, because the mean of its divisors is an integer number (1750816256).

Almost surely, 2^25156463241 is an apocalyptic number.

25156463241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25156463241 is a deficient number, since it is larger than the sum of its proper divisors (16863126903).

25156463241 is a wasteful number, since it uses less digits than its factorization.

25156463241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13164061 (or 13164054 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The spelling of 25156463241 in words is "twenty-five billion, one hundred fifty-six million, four hundred sixty-three thousand, two hundred forty-one".