125655516 has 96 divisors (see below), whose sum is σ = 377717760. Its totient is φ = 35380800.

The previous prime is 125655511. The next prime is 125655533. The reversal of 125655516 is 615556521.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125655511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52506 + ... + 54846.

It is an arithmetic number, because the mean of its divisors is an integer number (3934560).

Almost surely, 2^125655516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125655516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188858880).

125655516 is an abundant number, since it is smaller than the sum of its proper divisors (252062244).

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

125655516 is a wasteful number, since it uses less digits than its factorization.

125655516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432 (or 2424 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The square root of 125655516 is about 11209.6171210260. The cubic root of 125655516 is about 500.8724979424.

It can be divided in two parts, 12565 and 5516, that added together give a palindrome (18081).

The spelling of 125655516 in words is "one hundred twenty-five million, six hundred fifty-five thousand, five hundred sixteen".