125442455 has 4 divisors (see below), whose sum is σ = 150530952. Its totient is φ = 100353960.

The previous prime is 125442431. The next prime is 125442463. The reversal of 125442455 is 554244521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 554244521 = 557 ⋅995053.

It is not a de Polignac number, because 125442455 - 2¹⁰ = 125441431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12544241 + ... + 12544250.

It is an arithmetic number, because the mean of its divisors is an integer number (37632738).

Almost surely, 2^125442455 is an apocalyptic number.

125442455 is a deficient number, since it is larger than the sum of its proper divisors (25088497).

125442455 is an equidigital number, since it uses as much as digits as its factorization.

125442455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25088496.

The product of its digits is 32000, while the sum is 32.

The square root of 125442455 is about 11200.1095976781. The cubic root of 125442455 is about 500.5892453071.

Adding to 125442455 its reverse (554244521), we get a palindrome (679686976).

The spelling of 125442455 in words is "one hundred twenty-five million, four hundred forty-two thousand, four hundred fifty-five".