125254272057 has 4 divisors (see below), whose sum is σ = 167005696080. Its totient is φ = 83502848036.

The previous prime is 125254272047. The next prime is 125254272113. The reversal of 125254272057 is 750272452521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 750272452521 = 3 ⋅250090817507.

It is a cyclic number.

It is not a de Polignac number, because 125254272057 - 2¹⁴ = 125254255673 is a prime.

It is a super-2 number, since 2×125254272057² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125254272037) 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, 20875712007 + ... + 20875712012.

It is an arithmetic number, because the mean of its divisors is an integer number (41751424020).

Almost surely, 2^125254272057 is an apocalyptic number.

It is an amenable number.

125254272057 is a deficient number, since it is larger than the sum of its proper divisors (41751424023).

125254272057 is an equidigital number, since it uses as much as digits as its factorization.

125254272057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41751424022.

The product of its (nonzero) digits is 392000, while the sum is 42.

The spelling of 125254272057 in words is "one hundred twenty-five billion, two hundred fifty-four million, two hundred seventy-two thousand, fifty-seven".