253456120346 has 32 divisors (see below), whose sum is σ = 447231153600. Its totient is φ = 106206842880.

The previous prime is 253456120343. The next prime is 253456120349. The reversal of 253456120346 is 643021654352.

It is an interprime number because it is at equal distance from previous prime (253456120343) and next prime (253456120349).

It is not an unprimeable number, because it can be changed into a prime (253456120343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356276 + ... + 796143.

It is an arithmetic number, because the mean of its divisors is an integer number (13975973550).

Almost surely, 2^253456120346 is an apocalyptic number.

253456120346 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

253456120346 is a deficient number, since it is larger than the sum of its proper divisors (193775033254).

253456120346 is a wasteful number, since it uses less digits than its factorization.

253456120346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153214.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 253456120346 its reverse (643021654352), we get a palindrome (896477774698).

The spelling of 253456120346 in words is "two hundred fifty-three billion, four hundred fifty-six million, one hundred twenty thousand, three hundred forty-six".