2204157257 has 8 divisors (see below), whose sum is σ = 2275882752. Its totient is φ = 2132470800.

The previous prime is 2204157251. The next prime is 2204157259. The reversal of 2204157257 is 7527514022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2204157257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2204157251) 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, 143378 + ... + 158004.

It is an arithmetic number, because the mean of its divisors is an integer number (284485344).

Almost surely, 2^2204157257 is an apocalyptic number.

It is an amenable number.

2204157257 is a deficient number, since it is larger than the sum of its proper divisors (71725495).

2204157257 is a wasteful number, since it uses less digits than its factorization.

2204157257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19519.

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 2204157257 is about 46948.4531907069. The cubic root of 2204157257 is about 1301.4101575686.

The spelling of 2204157257 in words is "two billion, two hundred four million, one hundred fifty-seven thousand, two hundred fifty-seven".