254523536506 has 4 divisors (see below), whose sum is σ = 381785304762. Its totient is φ = 127261768252.

The previous prime is 254523536489. The next prime is 254523536557. The reversal of 254523536506 is 605635325452.

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

It can be written as a sum of positive squares in only one way, i.e., 167943416481 + 86580120025 = 409809^2 + 294245^2 .

It is a super-2 number, since 2×254523536506² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63630884125 + ... + 63630884128.

Almost surely, 2^254523536506 is an apocalyptic number.

254523536506 is a deficient number, since it is larger than the sum of its proper divisors (127261768256).

254523536506 is a wasteful number, since it uses less digits than its factorization.

254523536506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127261768255.

The product of its (nonzero) digits is 3240000, while the sum is 46.

The spelling of 254523536506 in words is "two hundred fifty-four billion, five hundred twenty-three million, five hundred thirty-six thousand, five hundred six".