25606316148 has 24 divisors (see below), whose sum is σ = 68283509952. Its totient is φ = 7316090304.

The previous prime is 25606316143. The next prime is 25606316149. The reversal of 25606316148 is 84161360652.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25606316143) 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, 152418465 + ... + 152418632.

It is an arithmetic number, because the mean of its divisors is an integer number (2845146248).

Almost surely, 2^25606316148 is an apocalyptic number.

25606316148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25606316148 is an abundant number, since it is smaller than the sum of its proper divisors (42677193804).

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

25606316148 is a wasteful number, since it uses less digits than its factorization.

25606316148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304837111 (or 304837109 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 25606316148 in words is "twenty-five billion, six hundred six million, three hundred sixteen thousand, one hundred forty-eight".