250955145247 has 4 divisors (see below), whose sum is σ = 250981758640. Its totient is φ = 250928531856.

The previous prime is 250955145151. The next prime is 250955145253. The reversal of 250955145247 is 742541559052.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250955145247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 250955145247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250955143247) 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, 13292547 + ... + 13311412.

It is an arithmetic number, because the mean of its divisors is an integer number (62745439660).

Almost surely, 2^250955145247 is an apocalyptic number.

250955145247 is a deficient number, since it is larger than the sum of its proper divisors (26613393).

250955145247 is an equidigital number, since it uses as much as digits as its factorization.

250955145247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26613392.

The product of its (nonzero) digits is 2520000, while the sum is 49.

The spelling of 250955145247 in words is "two hundred fifty billion, nine hundred fifty-five million, one hundred forty-five thousand, two hundred forty-seven".