2453557 has 4 divisors (see below), whose sum is σ = 2532736. Its totient is φ = 2374380.

The previous prime is 2453543. The next prime is 2453567. The reversal of 2453557 is 7553542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2453557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 79147 = 2453557 / (2 + 4 + 5 + 3 + 5 + 5 + 7).

It is a Duffinian number.

2453557 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2453567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39543 + ... + 39604.

It is an arithmetic number, because the mean of its divisors is an integer number (633184).

2^2453557 is an apocalyptic number.

It is an amenable number.

2453557 is a deficient number, since it is larger than the sum of its proper divisors (79179).

2453557 is an equidigital number, since it uses as much as digits as its factorization.

2453557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79178.

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

The square root of 2453557 is about 1566.3834141104. The cubic root of 2453557 is about 134.8751841326.

The spelling of 2453557 in words is "two million, four hundred fifty-three thousand, five hundred fifty-seven".