250400051430 has 128 divisors (see below), whose sum is σ = 657561079296. Its totient is φ = 60775680000.

The previous prime is 250400051423. The next prime is 250400051477. The reversal of 250400051430 is 34150004052.

It is a super-2 number, since 2×250400051430² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 250400051430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2158405 + ... + 2271455.

It is an arithmetic number, because the mean of its divisors is an integer number (5137195932).

Almost surely, 2^250400051430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250400051430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328780539648).

250400051430 is an abundant number, since it is smaller than the sum of its proper divisors (407161027866).

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

250400051430 is a wasteful number, since it uses less digits than its factorization.

250400051430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113222.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 250400051430 its reverse (34150004052), we get a palindrome (284550055482).

The spelling of 250400051430 in words is "two hundred fifty billion, four hundred million, fifty-one thousand, four hundred thirty".