253408549379 has 4 divisors (see below), whose sum is σ = 253410755400. Its totient is φ = 253406343360.

The previous prime is 253408549337. The next prime is 253408549411. The reversal of 253408549379 is 973945804352.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 253408549379 - 2²⁰ = 253407500803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253408549279) 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, 920654 + ... + 1163795.

It is an arithmetic number, because the mean of its divisors is an integer number (63352688850).

Almost surely, 2^253408549379 is an apocalyptic number.

253408549379 is a deficient number, since it is larger than the sum of its proper divisors (2206021).

253408549379 is a wasteful number, since it uses less digits than its factorization.

253408549379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206020.

The product of its (nonzero) digits is 32659200, while the sum is 59.

The spelling of 253408549379 in words is "two hundred fifty-three billion, four hundred eight million, five hundred forty-nine thousand, three hundred seventy-nine".