253054705 has 8 divisors (see below), whose sum is σ = 313461504. Its totient is φ = 195913200.

The previous prime is 253054693. The next prime is 253054733. The reversal of 253054705 is 507450352.

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

It is a de Polignac number, because none of the positive numbers 2^k-253054705 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816151 + ... + 816460.

It is an arithmetic number, because the mean of its divisors is an integer number (39182688).

Almost surely, 2^253054705 is an apocalyptic number.

It is an amenable number.

253054705 is a deficient number, since it is larger than the sum of its proper divisors (60406799).

253054705 is a wasteful number, since it uses less digits than its factorization.

253054705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632647.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 253054705 is about 15907.6932645811. The cubic root of 253054705 is about 632.5159364198.

The spelling of 253054705 in words is "two hundred fifty-three million, fifty-four thousand, seven hundred five".