25430263700 has 36 divisors (see below), whose sum is σ = 55803733020. Its totient is φ = 10057808640.

The previous prime is 25430263693. The next prime is 25430263777. The reversal of 25430263700 is 736203452.

It can be written as a sum of positive squares in 6 ways, for example, as 7464614404 + 17965649296 = 86398^2 + 134036^2 .

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, 1419767 + ... + 1437566.

It is an arithmetic number, because the mean of its divisors is an integer number (1550103695).

Almost surely, 2^25430263700 is an apocalyptic number.

25430263700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25430263700 is an abundant number, since it is smaller than the sum of its proper divisors (30373469320).

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

25430263700 is a wasteful number, since it uses less digits than its factorization.

25430263700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857436 (or 2857429 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 25430263700 in words is "twenty-five billion, four hundred thirty million, two hundred sixty-three thousand, seven hundred".