25142763156 has 384 divisors, whose sum is σ = 78033715200. Its totient is φ = 6127073280.

The previous prime is 25142763127. The next prime is 25142763193. The reversal of 25142763156 is 65136724152.

It is a super-2 number, since 2×25142763156² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 140462275 + ... + 140462453.

It is an arithmetic number, because the mean of its divisors is an integer number (203212800).

Almost surely, 2^25142763156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25142763156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39016857600).

25142763156 is an abundant number, since it is smaller than the sum of its proper divisors (52890952044).

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

25142763156 is a wasteful number, since it uses less digits than its factorization.

25142763156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 425 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The spelling of 25142763156 in words is "twenty-five billion, one hundred forty-two million, seven hundred sixty-three thousand, one hundred fifty-six".