125217454275 has 36 divisors (see below), whose sum is σ = 226498992720. Its totient is φ = 66121416000.

The previous prime is 125217454273. The next prime is 125217454399. The reversal of 125217454275 is 572454712521.

It is a happy number.

125217454275 is a `hidden beast` number, since 1 + 2 + 5 + 217 + 4 + 5 + 427 + 5 = 666.

It is not a de Polignac number, because 125217454275 - 2¹ = 125217454273 is a prime.

It is a super-2 number, since 2×125217454275² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 125217454275.

It is not an unprimeable number, because it can be changed into a prime (125217454273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2732335 + ... + 2777784.

Almost surely, 2^125217454275 is an apocalyptic number.

125217454275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125217454275 is a deficient number, since it is larger than the sum of its proper divisors (101281538445).

125217454275 is a wasteful number, since it uses less digits than its factorization.

125217454275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510236 (or 5510228 counting only the distinct ones).

The product of its digits is 784000, while the sum is 45.

It can be divided in two parts, 1252174 and 54275, that added together give a square (1306449 = 1143²).

The spelling of 125217454275 in words is "one hundred twenty-five billion, two hundred seventeen million, four hundred fifty-four thousand, two hundred seventy-five".