125455311 has 12 divisors (see below), whose sum is σ = 187925192. Its totient is φ = 83636712.

The previous prime is 125455307. The next prime is 125455331. The reversal of 125455311 is 113554521.

125455311 is a `hidden beast` number, since 125 + 4 + 5 + 531 + 1 = 666.

It is not a de Polignac number, because 125455311 - 2² = 125455307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125455331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257896 + ... + 258381.

Almost surely, 2^125455311 is an apocalyptic number.

125455311 is a deficient number, since it is larger than the sum of its proper divisors (62469881).

125455311 is an frugal number, since it uses more digits than its factorization.

125455311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516292 (or 516280 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 125455311 is about 11200.6835059294. The cubic root of 125455311 is about 500.6063457258.

It can be divided in two parts, 1254 and 55311, that added together give a palindrome (56565).

The spelling of 125455311 in words is "one hundred twenty-five million, four hundred fifty-five thousand, three hundred eleven".