250243130001555 has 12 divisors (see below), whose sum is σ = 433754758669440. Its totient is φ = 133463002667472.

The previous prime is 250243130001551. The next prime is 250243130001583. The reversal of 250243130001555 is 555100031342052.

250243130001555 is a `hidden beast` number, since 2 + 50 + 2 + 43 + 13 + 0 + 0 + 0 + 1 + 555 = 666.

It is not a de Polignac number, because 250243130001555 - 2² = 250243130001551 is a prime.

It is a super-2 number, since 2×250243130001555² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (250243130001551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2780479222195 + ... + 2780479222284.

It is an arithmetic number, because the mean of its divisors is an integer number (36146229889120).

Almost surely, 2^{250243130001555} is an apocalyptic number.

250243130001555 is a deficient number, since it is larger than the sum of its proper divisors (183511628667885).

250243130001555 is a wasteful number, since it uses less digits than its factorization.

250243130001555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560958444490 (or 5560958444487 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 250243130001555 in words is "two hundred fifty trillion, two hundred forty-three billion, one hundred thirty million, one thousand, five hundred fifty-five".