25415394930 has 48 divisors (see below), whose sum is σ = 66097526040. Its totient is φ = 6775643904.

The previous prime is 25415394923. The next prime is 25415394937. The reversal of 25415394930 is 3949351452.

25415394930 is a `hidden beast` number, since 2 + 5 + 4 + 153 + 9 + 493 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (25415394923) and next prime (25415394937).

It can be written as a sum of positive squares in 4 ways, for example, as 12638031561 + 12777363369 = 112419^2 + 113037^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (25415394937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 323614 + ... + 394406.

Almost surely, 2^25415394930 is an apocalyptic number.

25415394930 is an abundant number, since it is smaller than the sum of its proper divisors (40682131110).

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

25415394930 is a wasteful number, since it uses less digits than its factorization.

25415394930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74795 (or 74792 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 25415394930 in words is "twenty-five billion, four hundred fifteen million, three hundred ninety-four thousand, nine hundred thirty".