125244251540 has 24 divisors (see below), whose sum is σ = 263063465952. Its totient is φ = 50088074400.

The previous prime is 125244251519. The next prime is 125244251549. The reversal of 125244251540 is 45152442521.

It is a super-2 number, since 2×125244251540² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125244251540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125244251549) 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, 494486 + ... + 703565.

It is an arithmetic number, because the mean of its divisors is an integer number (10960977748).

Almost surely, 2^125244251540 is an apocalyptic number.

125244251540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125244251540 is an abundant number, since it is smaller than the sum of its proper divisors (137819214412).

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

125244251540 is a wasteful number, since it uses less digits than its factorization.

125244251540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203287 (or 1203285 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 125244251540 in words is "one hundred twenty-five billion, two hundred forty-four million, two hundred fifty-one thousand, five hundred forty".