250243402530 has 64 divisors (see below), whose sum is σ = 655303550976. Its totient is φ = 60653880000.

The previous prime is 250243402469. The next prime is 250243402579. The reversal of 250243402530 is 35204342052.

It is a super-2 number, since 2×250243402530² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1797735 + ... + 1931925.

It is an arithmetic number, because the mean of its divisors is an integer number (10239117984).

Almost surely, 2^250243402530 is an apocalyptic number.

250243402530 is an abundant number, since it is smaller than the sum of its proper divisors (405060148446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250243402530 is a wasteful number, since it uses less digits than its factorization.

250243402530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139863.

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 250243402530 its reverse (35204342052), we get a palindrome (285447744582).

The spelling of 250243402530 in words is "two hundred fifty billion, two hundred forty-three million, four hundred two thousand, five hundred thirty".