253293949 has 4 divisors (see below), whose sum is σ = 253466460. Its totient is φ = 253121440.

The previous prime is 253293919. The next prime is 253293973. The reversal of 253293949 is 949392352.

It is a happy number.

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 109725625 + 143568324 = 10475^2 + 11982^2 .

It is a cyclic number.

It is not a de Polignac number, because 253293949 - 2¹⁹ = 252769661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253293899 and 253293908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253293919) 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, 84034 + ... + 86995.

It is an arithmetic number, because the mean of its divisors is an integer number (63366615).

Almost surely, 2^253293949 is an apocalyptic number.

It is an amenable number.

253293949 is a deficient number, since it is larger than the sum of its proper divisors (172511).

253293949 is a wasteful number, since it uses less digits than its factorization.

253293949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172510.

The product of its digits is 524880, while the sum is 46.

The square root of 253293949 is about 15915.2112458490. The cubic root of 253293949 is about 632.7152055578.

It can be divided in two parts, 25329394 and 9, that added together give a triangular number (25329403 = T₇₁₁₇).

The spelling of 253293949 in words is "two hundred fifty-three million, two hundred ninety-three thousand, nine hundred forty-nine".