253440701 has 4 divisors (see below), whose sum is σ = 253658304. Its totient is φ = 253223100.

The previous prime is 253440683. The next prime is 253440731. The reversal of 253440701 is 107044352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253440701 - 2¹⁸ = 253178557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253440731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107045 + ... + 109386.

It is an arithmetic number, because the mean of its divisors is an integer number (63414576).

Almost surely, 2^253440701 is an apocalyptic number.

It is an amenable number.

253440701 is a deficient number, since it is larger than the sum of its proper divisors (217603).

253440701 is a wasteful number, since it uses less digits than its factorization.

253440701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217602.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 253440701 is about 15919.8210103003. The cubic root of 253440701 is about 632.8373749397.

The spelling of 253440701 in words is "two hundred fifty-three million, four hundred forty thousand, seven hundred one".