25583979070 has 32 divisors (see below), whose sum is σ = 49608730080. Its totient is φ = 9443502720.

The previous prime is 25583979067. The next prime is 25583979077. The reversal of 25583979070 is 7097938552.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25583979077) 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, 422605 + ... + 479335.

It is an arithmetic number, because the mean of its divisors is an integer number (1550272815).

Almost surely, 2^25583979070 is an apocalyptic number.

25583979070 is a deficient number, since it is larger than the sum of its proper divisors (24024751010).

25583979070 is a wasteful number, since it uses less digits than its factorization.

25583979070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60220.

The product of its (nonzero) digits is 4762800, while the sum is 55.

It can be divided in two parts, 25583 and 979070, that added together give a triangular number (1004653 = T₁₄₁₇).

The spelling of 25583979070 in words is "twenty-five billion, five hundred eighty-three million, nine hundred seventy-nine thousand, seventy".