2450657557 has 4 divisors (see below), whose sum is σ = 2535163020. Its totient is φ = 2366152096.

The previous prime is 2450657527. The next prime is 2450657581. The reversal of 2450657557 is 7557560542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1493745201 + 956912356 = 38649^2 + 30934^2 .

It is a cyclic number.

It is not a de Polignac number, because 2450657557 - 2¹⁵ = 2450624789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2450657527) 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, 42252688 + ... + 42252745.

It is an arithmetic number, because the mean of its divisors is an integer number (633790755).

Almost surely, 2^2450657557 is an apocalyptic number.

It is an amenable number.

2450657557 is a deficient number, since it is larger than the sum of its proper divisors (84505463).

2450657557 is an equidigital number, since it uses as much as digits as its factorization.

2450657557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84505462.

The product of its (nonzero) digits is 1470000, while the sum is 46.

The square root of 2450657557 is about 49504.1165662008. The cubic root of 2450657557 is about 1348.2203448721.

The spelling of 2450657557 in words is "two billion, four hundred fifty million, six hundred fifty-seven thousand, five hundred fifty-seven".