255472145513 has 4 divisors (see below), whose sum is σ = 275123849028. Its totient is φ = 235820442000.

The previous prime is 255472145503. The next prime is 255472145557. The reversal of 255472145513 is 315541274552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90581737024 + 164890408489 = 300968^2 + 406067^2 .

It is not a de Polignac number, because 255472145513 - 2¹⁶ = 255472079977 is a prime.

It is a super-5 number, since 5×255472145513⁵ (a number of 58 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255472145503) 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, 9825851738 + ... + 9825851763.

It is an arithmetic number, because the mean of its divisors is an integer number (68780962257).

Almost surely, 2^255472145513 is an apocalyptic number.

It is an amenable number.

255472145513 is a deficient number, since it is larger than the sum of its proper divisors (19651703515).

255472145513 is a wasteful number, since it uses less digits than its factorization.

255472145513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19651703514.

The product of its digits is 840000, while the sum is 44.

The spelling of 255472145513 in words is "two hundred fifty-five billion, four hundred seventy-two million, one hundred forty-five thousand, five hundred thirteen".