25742630452 has 36 divisors (see below), whose sum is σ = 56591244640. Its totient is φ = 10029594960.

The previous prime is 25742630449. The next prime is 25742630461. The reversal of 25742630452 is 25403624752.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3795702 + ... + 3802477.

Almost surely, 2^25742630452 is an apocalyptic number.

25742630452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25742630452 is an abundant number, since it is smaller than the sum of its proper divisors (30848614188).

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

25742630452 is a wasteful number, since it uses less digits than its factorization.

25742630452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7598212 (or 7598199 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 25742630452 in words is "twenty-five billion, seven hundred forty-two million, six hundred thirty thousand, four hundred fifty-two".