125230355501 has 4 divisors (see below), whose sum is σ = 125250123612. Its totient is φ = 125210587392.

The previous prime is 125230355489. The next prime is 125230355513. The reversal of 125230355501 is 105553032521.

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 (125230355489) and next prime (125230355513).

It can be written as a sum of positive squares in 2 ways, for example, as 87574564900 + 37655790601 = 295930^2 + 194051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125230355501 is a prime.

It is a super-2 number, since 2×125230355501² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125230355581) 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, 9874550 + ... + 9887223.

It is an arithmetic number, because the mean of its divisors is an integer number (31312530903).

Almost surely, 2^125230355501 is an apocalyptic number.

It is an amenable number.

125230355501 is a deficient number, since it is larger than the sum of its proper divisors (19768111).

125230355501 is an equidigital number, since it uses as much as digits as its factorization.

125230355501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19768110.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 125230355501 in words is "one hundred twenty-five billion, two hundred thirty million, three hundred fifty-five thousand, five hundred one".