125522501 has 4 divisors (see below), whose sum is σ = 135178092. Its totient is φ = 115866912.

The previous prime is 125522483. The next prime is 125522519. The reversal of 125522501 is 105225521.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (125522483) and next prime (125522519).

It can be written as a sum of positive squares in 2 ways, for example, as 25502500 + 100020001 = 5050^2 + 10001^2 .

It is a cyclic number.

It is not a de Polignac number, because 125522501 - 2¹⁰ = 125521477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125522521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4827776 + ... + 4827801.

It is an arithmetic number, because the mean of its divisors is an integer number (33794523).

Almost surely, 2^125522501 is an apocalyptic number.

It is an amenable number.

125522501 is a deficient number, since it is larger than the sum of its proper divisors (9655591).

125522501 is an equidigital number, since it uses as much as digits as its factorization.

125522501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9655590.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 125522501 is about 11203.6824749722. The cubic root of 125522501 is about 500.6956995553.

The spelling of 125522501 in words is "one hundred twenty-five million, five hundred twenty-two thousand, five hundred one".