253670513 has 8 divisors (see below), whose sum is σ = 258144936. Its totient is φ = 249206400.

The previous prime is 253670503. The next prime is 253670579. The reversal of 253670513 is 315076352.

It can be written as a sum of positive squares in 4 ways, for example, as 2226064 + 251444449 = 1492^2 + 15857^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253670513 - 2¹⁶ = 253604977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253670513.

It is not an unprimeable number, because it can be changed into a prime (253670503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60245 + ... + 64317.

It is an arithmetic number, because the mean of its divisors is an integer number (32268117).

Almost surely, 2^253670513 is an apocalyptic number.

It is an amenable number.

253670513 is a deficient number, since it is larger than the sum of its proper divisors (4474423).

253670513 is a wasteful number, since it uses less digits than its factorization.

253670513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 253670513 is about 15927.0371695429. The cubic root of 253670513 is about 633.0285961158.

The spelling of 253670513 in words is "two hundred fifty-three million, six hundred seventy thousand, five hundred thirteen".