253503251433401 has 4 divisors (see below), whose sum is σ = 253509762741732. Its totient is φ = 253496740125072.

The previous prime is 253503251433359. The next prime is 253503251433433. The reversal of 253503251433401 is 104334152305352.

253503251433401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38333929273600 + 215169322159801 = 6191440^2 + 14668651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253503251433401 is a prime.

It is a super-2 number, since 2×253503251433401² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253503251433701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3255595766 + ... + 3255673631.

It is an arithmetic number, because the mean of its divisors is an integer number (63377440685433).

Almost surely, 2^{253503251433401} is an apocalyptic number.

It is an amenable number.

253503251433401 is a deficient number, since it is larger than the sum of its proper divisors (6511308331).

253503251433401 is an equidigital number, since it uses as much as digits as its factorization.

253503251433401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6511308330.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 253503251433401 in words is "two hundred fifty-three trillion, five hundred three billion, two hundred fifty-one million, four hundred thirty-three thousand, four hundred one".