253425433501 has 4 divisors (see below), whose sum is σ = 253426472572. Its totient is φ = 253424394432.

The previous prime is 253425433477. The next prime is 253425433567. The reversal of 253425433501 is 105334524352.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 169189078276 + 84236355225 = 411326^2 + 290235^2 .

It is a cyclic number.

It is not a de Polignac number, because 253425433501 - 2⁹ = 253425432989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253425437501) 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, 67141 + ... + 715093.

It is an arithmetic number, because the mean of its divisors is an integer number (63356618143).

Almost surely, 2^253425433501 is an apocalyptic number.

It is an amenable number.

253425433501 is a deficient number, since it is larger than the sum of its proper divisors (1039071).

253425433501 is an equidigital number, since it uses as much as digits as its factorization.

253425433501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039070.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 253425433501 its reverse (105334524352), we get a palindrome (358759957853).

The spelling of 253425433501 in words is "two hundred fifty-three billion, four hundred twenty-five million, four hundred thirty-three thousand, five hundred one".