2257651 has 8 divisors (see below), whose sum is σ = 2607984. Its totient is φ = 1931520.

The previous prime is 2257649. The next prime is 2257667. The reversal of 2257651 is 1567522.

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 2257651 - 2¹ = 2257649 is a prime.

It is a Duffinian number.

2257651 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2257691) 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, 5850 + ... + 6223.

It is an arithmetic number, because the mean of its divisors is an integer number (325998).

2^2257651 is an apocalyptic number.

2257651 is a deficient number, since it is larger than the sum of its proper divisors (350333).

2257651 is a wasteful number, since it uses less digits than its factorization.

2257651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12101.

The product of its digits is 4200, while the sum is 28.

The square root of 2257651 is about 1502.5481689450. The cubic root of 2257651 is about 131.1854297658.

The spelling of 2257651 in words is "two million, two hundred fifty-seven thousand, six hundred fifty-one".