2557090733 has 4 divisors (see below), whose sum is σ = 2557467648. Its totient is φ = 2556713820.

The previous prime is 2557090709. The next prime is 2557090741. The reversal of 2557090733 is 3370907552.

2557090733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 2557090733 - 2¹⁴ = 2557074349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557090703) 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, 178091 + ... + 191912.

It is an arithmetic number, because the mean of its divisors is an integer number (639366912).

Almost surely, 2^2557090733 is an apocalyptic number.

It is an amenable number.

2557090733 is a deficient number, since it is larger than the sum of its proper divisors (376915).

2557090733 is an equidigital number, since it uses as much as digits as its factorization.

2557090733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376914.

The product of its (nonzero) digits is 198450, while the sum is 41.

The square root of 2557090733 is about 50567.6846711415. The cubic root of 2557090733 is about 1367.4623550203.

The spelling of 2557090733 in words is "two billion, five hundred fifty-seven million, ninety thousand, seven hundred thirty-three".