25433526140 has 24 divisors (see below), whose sum is σ = 58265896752. Its totient is φ = 9248554880.

The previous prime is 25433526133. The next prime is 25433526143. The reversal of 25433526140 is 4162533452.

It is a self number, because there is not a number n which added to its sum of digits gives 25433526140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25433526143) 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, 57803249 + ... + 57803688.

It is an arithmetic number, because the mean of its divisors is an integer number (2427745698).

Almost surely, 2^25433526140 is an apocalyptic number.

25433526140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25433526140 is an abundant number, since it is smaller than the sum of its proper divisors (32832370612).

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

25433526140 is a wasteful number, since it uses less digits than its factorization.

25433526140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115606957 (or 115606955 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 25433526140 in words is "twenty-five billion, four hundred thirty-three million, five hundred twenty-six thousand, one hundred forty".