253204263501 has 48 divisors (see below), whose sum is σ = 404497900800. Its totient is φ = 140373233280.

The previous prime is 253204263457. The next prime is 253204263503. The reversal of 253204263501 is 105362402352.

It is a happy number.

It is not a de Polignac number, because 253204263501 - 2⁹ = 253204262989 is a prime.

It is a super-2 number, since 2×253204263501² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253204263503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1831516 + ... + 1964906.

It is an arithmetic number, because the mean of its divisors is an integer number (8427039600).

Almost surely, 2^253204263501 is an apocalyptic number.

253204263501 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

253204263501 is a deficient number, since it is larger than the sum of its proper divisors (151293637299).

253204263501 is a wasteful number, since it uses less digits than its factorization.

253204263501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133794 (or 133787 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 253204263501 its reverse (105362402352), we get a palindrome (358566665853).

The spelling of 253204263501 in words is "two hundred fifty-three billion, two hundred four million, two hundred sixty-three thousand, five hundred one".