125558490 has 32 divisors (see below), whose sum is σ = 306452160. Its totient is φ = 32914304.

The previous prime is 125558473. The next prime is 125558491. The reversal of 125558490 is 94855521.

It is a super-2 number, since 2×125558490² = 31529868822160200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125558491) 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, 33699 + ... + 37238.

It is an arithmetic number, because the mean of its divisors is an integer number (9576630).

Almost surely, 2^125558490 is an apocalyptic number.

125558490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125558490 is an abundant number, since it is smaller than the sum of its proper divisors (180893670).

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

125558490 is a wasteful number, since it uses less digits than its factorization.

125558490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71006.

The product of its (nonzero) digits is 72000, while the sum is 39.

The square root of 125558490 is about 11205.2884835688. The cubic root of 125558490 is about 500.7435470608.

The spelling of 125558490 in words is "one hundred twenty-five million, five hundred fifty-eight thousand, four hundred ninety".