253860249466 has 4 divisors (see below), whose sum is σ = 380790374202. Its totient is φ = 126930124732.

The previous prime is 253860249443. The next prime is 253860249493. The reversal of 253860249466 is 664942068352.

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., 221390011441 + 32470238025 = 470521^2 + 180195^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63465062365 + ... + 63465062368.

Almost surely, 2^253860249466 is an apocalyptic number.

253860249466 is a deficient number, since it is larger than the sum of its proper divisors (126930124736).

253860249466 is a wasteful number, since it uses less digits than its factorization.

253860249466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126930124735.

The product of its (nonzero) digits is 14929920, while the sum is 55.

The spelling of 253860249466 in words is "two hundred fifty-three billion, eight hundred sixty million, two hundred forty-nine thousand, four hundred sixty-six".