249855961033 has 16 divisors (see below), whose sum is σ = 286272098944. Its totient is φ = 213621027840.

The previous prime is 249855960967. The next prime is 249855961037. The reversal of 249855961033 is 330169558942.

It is a cyclic number.

It is not a de Polignac number, because 249855961033 - 2²⁵ = 249822406601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249855961037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5190391 + ... + 5238307.

It is an arithmetic number, because the mean of its divisors is an integer number (17892006184).

Almost surely, 2^249855961033 is an apocalyptic number.

It is an amenable number.

249855961033 is a deficient number, since it is larger than the sum of its proper divisors (36416137911).

249855961033 is a wasteful number, since it uses less digits than its factorization.

249855961033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49792.

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 249855961033 in words is "two hundred forty-nine billion, eight hundred fifty-five million, nine hundred sixty-one thousand, thirty-three".