253061431 has 6 divisors (see below), whose sum is σ = 294377640. Its totient is φ = 216909756.

The previous prime is 253061381. The next prime is 253061441. The reversal of 253061431 is 134160352.

It is not a de Polignac number, because 253061431 - 2¹⁹ = 252537143 is a prime.

It is a super-2 number, since 2×253061431² = 128080175719535522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253061396 and 253061405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253061441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2582211 + ... + 2582308.

It is an arithmetic number, because the mean of its divisors is an integer number (49062940).

Almost surely, 2^253061431 is an apocalyptic number.

253061431 is a deficient number, since it is larger than the sum of its proper divisors (41316209).

253061431 is an equidigital number, since it uses as much as digits as its factorization.

253061431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5164533 (or 5164526 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 253061431 is about 15907.9046703203. The cubic root of 253061431 is about 632.5215402997.

The spelling of 253061431 in words is "two hundred fifty-three million, sixty-one thousand, four hundred thirty-one".