125405606415530 has 32 divisors (see below), whose sum is σ = 257982662793600. Its totient is φ = 42995305362240.

The previous prime is 125405606415517. The next prime is 125405606415553. The reversal of 125405606415530 is 35514606504521.

It is a happy number.

It is a super-2 number, since 2×125405606415530² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15440381 + ... + 22118240.

It is an arithmetic number, because the mean of its divisors is an integer number (8061958212300).

Almost surely, 2^{125405606415530} is an apocalyptic number.

125405606415530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125405606415530 is an abundant number, since it is smaller than the sum of its proper divisors (132577056378070).

125405606415530 is a wasteful number, since it uses less digits than its factorization.

125405606415530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37606334.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 125405606415530 in words is "one hundred twenty-five trillion, four hundred five billion, six hundred six million, four hundred fifteen thousand, five hundred thirty".