253004423430 has 64 divisors (see below), whose sum is σ = 680314629888. Its totient is φ = 59676716160.

The previous prime is 253004423423. The next prime is 253004423437. The reversal of 253004423430 is 34324400352.

It is an interprime number because it is at equal distance from previous prime (253004423423) and next prime (253004423437).

It is a super-2 number, since 2×253004423430² (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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253004423437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10348332 + ... + 10372751.

It is an arithmetic number, because the mean of its divisors is an integer number (10629916092).

Almost surely, 2^253004423430 is an apocalyptic number.

253004423430 is an abundant number, since it is smaller than the sum of its proper divisors (427310206458).

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

253004423430 is a wasteful number, since it uses less digits than its factorization.

253004423430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20721141.

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 253004423430 its reverse (34324400352), we get a palindrome (287328823782).

The spelling of 253004423430 in words is "two hundred fifty-three billion, four million, four hundred twenty-three thousand, four hundred thirty".