25131362340 has 48 divisors (see below), whose sum is σ = 80420360832. Its totient is φ = 5744311296.

The previous prime is 25131362309. The next prime is 25131362371. The reversal of 25131362340 is 4326313152.

It is an interprime number because it is at equal distance from previous prime (25131362309) and next prime (25131362371).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 25131362298 and 25131362307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29917869 + ... + 29918708.

It is an arithmetic number, because the mean of its divisors is an integer number (1675424184).

Almost surely, 2^25131362340 is an apocalyptic number.

25131362340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25131362340 is an abundant number, since it is smaller than the sum of its proper divisors (55288998492).

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

25131362340 is a wasteful number, since it uses less digits than its factorization.

25131362340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59836596 (or 59836594 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 25131362340 its reverse (4326313152), we get a palindrome (29457675492).

The spelling of 25131362340 in words is "twenty-five billion, one hundred thirty-one million, three hundred sixty-two thousand, three hundred forty".