252555505274 has 4 divisors (see below), whose sum is σ = 378833257914. Its totient is φ = 126277752636.

The previous prime is 252555505253. The next prime is 252555505331. The reversal of 252555505274 is 472505555252.

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., 245020050025 + 7535455249 = 494995^2 + 86807^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63138876317 + ... + 63138876320.

Almost surely, 2^252555505274 is an apocalyptic number.

252555505274 is a deficient number, since it is larger than the sum of its proper divisors (126277752640).

252555505274 is a wasteful number, since it uses less digits than its factorization.

252555505274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126277752639.

The product of its (nonzero) digits is 3500000, while the sum is 47.

The spelling of 252555505274 in words is "two hundred fifty-two billion, five hundred fifty-five million, five hundred five thousand, two hundred seventy-four".