255415531345 has 12 divisors (see below), whose sum is σ = 331889058396. Its totient is φ = 188614545600.

The previous prime is 255415531339. The next prime is 255415531409. The reversal of 255415531345 is 543135514552.

It can be written as a sum of positive squares in 6 ways, for example, as 78592758336 + 176822773009 = 280344^2 + 420503^2 .

It is not a de Polignac number, because 255415531345 - 2³ = 255415531337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151132606 + ... + 151134295.

It is an arithmetic number, because the mean of its divisors is an integer number (27657421533).

Almost surely, 2^255415531345 is an apocalyptic number.

It is an amenable number.

255415531345 is a deficient number, since it is larger than the sum of its proper divisors (76473527051).

255415531345 is a wasteful number, since it uses less digits than its factorization.

255415531345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302266932 (or 302266919 counting only the distinct ones).

The product of its digits is 900000, while the sum is 43.

The spelling of 255415531345 in words is "two hundred fifty-five billion, four hundred fifteen million, five hundred thirty-one thousand, three hundred forty-five".