125505030 has 32 divisors (see below), whose sum is σ = 344242944. Its totient is φ = 28686816.

The previous prime is 125504971. The next prime is 125505049. The reversal of 125505030 is 30505521.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 125504988 and 125505006.

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, 298612 + ... + 299031.

It is an arithmetic number, because the mean of its divisors is an integer number (10757592).

Almost surely, 2^125505030 is an apocalyptic number.

125505030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125505030 is an abundant number, since it is smaller than the sum of its proper divisors (218737914).

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

125505030 is a wasteful number, since it uses less digits than its factorization.

125505030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597660.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 125505030 is about 11202.9027488415. The cubic root of 125505030 is about 500.6724685001.

The spelling of 125505030 in words is "one hundred twenty-five million, five hundred five thousand, thirty".