125153520 has 80 divisors (see below), whose sum is σ = 389058432. Its totient is φ = 33281280.

The previous prime is 125153471. The next prime is 125153533. The reversal of 125153520 is 25351521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 153915 + ... + 154725.

Almost surely, 2^125153520 is an apocalyptic number.

125153520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125153520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194529216).

125153520 is an abundant number, since it is smaller than the sum of its proper divisors (263904912).

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

125153520 is a wasteful number, since it uses less digits than its factorization.

125153520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470 (or 1464 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 125153520 is about 11187.2034038896. The cubic root of 125153520 is about 500.2046095917.

The spelling of 125153520 in words is "one hundred twenty-five million, one hundred fifty-three thousand, five hundred twenty".