2257123605 has 16 divisors (see below), whose sum is σ = 3939706944. Its totient is φ = 1094362880.

The previous prime is 2257123579. The next prime is 2257123633. The reversal of 2257123605 is 5063217522.

It is not a de Polignac number, because 2257123605 - 2¹⁵ = 2257090837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6839604 + ... + 6839933.

It is an arithmetic number, because the mean of its divisors is an integer number (246231684).

Almost surely, 2^2257123605 is an apocalyptic number.

It is an amenable number.

2257123605 is a deficient number, since it is larger than the sum of its proper divisors (1682583339).

2257123605 is a wasteful number, since it uses less digits than its factorization.

2257123605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13679556.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 2257123605 is about 47509.1949521353. The cubic root of 2257123605 is about 1311.7521384852.

The spelling of 2257123605 in words is "two billion, two hundred fifty-seven million, one hundred twenty-three thousand, six hundred five".