253401879 has 32 divisors (see below), whose sum is σ = 372971520. Its totient is φ = 152320608.

The previous prime is 253401877. The next prime is 253401893. The reversal of 253401879 is 978104352.

It is not a de Polignac number, because 253401879 - 2¹ = 253401877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253401871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370672 + ... + 371354.

It is an arithmetic number, because the mean of its divisors is an integer number (11655360).

Almost surely, 2^253401879 is an apocalyptic number.

253401879 is a deficient number, since it is larger than the sum of its proper divisors (119569641).

253401879 is a wasteful number, since it uses less digits than its factorization.

253401879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 253401879 is about 15918.6016659756. The cubic root of 253401879 is about 632.8050606521.

The spelling of 253401879 in words is "two hundred fifty-three million, four hundred one thousand, eight hundred seventy-nine".