125570000 has 100 divisors (see below), whose sum is σ = 315227220. Its totient is φ = 48384000.

The previous prime is 125569999. The next prime is 125570009. The reversal of 125570000 is 75521.

It can be written as a sum of positive squares in 10 ways, for example, as 115175824 + 10394176 = 10732^2 + 3224^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125570009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 289784 + ... + 290216.

Almost surely, 2^125570000 is an apocalyptic number.

125570000 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 125570000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157613610).

125570000 is an abundant number, since it is smaller than the sum of its proper divisors (189657220).

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

125570000 is an equidigital number, since it uses as much as digits as its factorization.

125570000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 125570000 is about 11205.8020685714. The cubic root of 125570000 is about 500.7588477176.

The spelling of 125570000 in words is "one hundred twenty-five million, five hundred seventy thousand".