125521522 has 8 divisors (see below), whose sum is σ = 215179776. Its totient is φ = 53794932.

The previous prime is 125521519. The next prime is 125521547. The reversal of 125521522 is 225125521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4482898 + ... + 4482925.

It is an arithmetic number, because the mean of its divisors is an integer number (26897472).

Almost surely, 2^125521522 is an apocalyptic number.

125521522 is a deficient number, since it is larger than the sum of its proper divisors (89658254).

125521522 is an equidigital number, since it uses as much as digits as its factorization.

125521522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8965832.

The product of its digits is 2000, while the sum is 25.

The square root of 125521522 is about 11203.6387838952. The cubic root of 125521522 is about 500.6943978435.

The spelling of 125521522 in words is "one hundred twenty-five million, five hundred twenty-one thousand, five hundred twenty-two".