125505525440 has 56 divisors (see below), whose sum is σ = 299034799440. Its totient is φ = 50172853248.

The previous prime is 125505525437. The next prime is 125505525443. The reversal of 125505525440 is 44525505521.

It is an interprime number because it is at equal distance from previous prime (125505525437) and next prime (125505525443).

It is a junction number, because it is equal to n+sod(n) for n = 125505525394 and 125505525403.

It is not an unprimeable number, because it can be changed into a prime (125505525443) 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, 437546 + ... + 665174.

Almost surely, 2^125505525440 is an apocalyptic number.

125505525440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125505525440 is an abundant number, since it is smaller than the sum of its proper divisors (173529274000).

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

125505525440 is a wasteful number, since it uses less digits than its factorization.

125505525440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229369 (or 229359 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 38.

The spelling of 125505525440 in words is "one hundred twenty-five billion, five hundred five million, five hundred twenty-five thousand, four hundred forty".