250553504491 has 2 divisors, whose sum is σ = 250553504492. Its totient is φ = 250553504490.

The previous prime is 250553504477. The next prime is 250553504549. The reversal of 250553504491 is 194405355052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 250553504491 - 2³⁷ = 113114551019 is a prime.

It is a super-2 number, since 2×250553504491² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (250553504471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125276752245 + 125276752246.

It is an arithmetic number, because the mean of its divisors is an integer number (125276752246).

Almost surely, 2^250553504491 is an apocalyptic number.

250553504491 is a deficient number, since it is larger than the sum of its proper divisors (1).

250553504491 is an equidigital number, since it uses as much as digits as its factorization.

250553504491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 250553504491 in words is "two hundred fifty billion, five hundred fifty-three million, five hundred four thousand, four hundred ninety-one".