125564380 has 48 divisors (see below), whose sum is σ = 283076640. Its totient is φ = 46614528.

The previous prime is 125564359. The next prime is 125564381. The reversal of 125564380 is 83465521.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125564381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22291 + ... + 27349.

It is an arithmetic number, because the mean of its divisors is an integer number (5897430).

Almost surely, 2^125564380 is an apocalyptic number.

125564380 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 125564380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141538320).

125564380 is an abundant number, since it is smaller than the sum of its proper divisors (157512260).

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

125564380 is a wasteful number, since it uses less digits than its factorization.

125564380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158 (or 5156 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 125564380 is about 11205.5513028142. The cubic root of 125564380 is about 500.7513769664.

The spelling of 125564380 in words is "one hundred twenty-five million, five hundred sixty-four thousand, three hundred eighty".