125552001 has 4 divisors (see below), whose sum is σ = 167402672. Its totient is φ = 83701332.

The previous prime is 125551999. The next prime is 125552003. The reversal of 125552001 is 100255521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (125551999) and next prime (125552003).

It is not a de Polignac number, because 125552001 - 2¹ = 125551999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125552003) 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, 20925331 + ... + 20925336.

It is an arithmetic number, because the mean of its divisors is an integer number (41850668).

Almost surely, 2^125552001 is an apocalyptic number.

It is an amenable number.

125552001 is a deficient number, since it is larger than the sum of its proper divisors (41850671).

125552001 is an equidigital number, since it uses as much as digits as its factorization.

125552001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41850670.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 125552001 is about 11204.9989290495. The cubic root of 125552001 is about 500.7349205875.

The spelling of 125552001 in words is "one hundred twenty-five million, five hundred fifty-two thousand, one".