2257148587557 has 4 divisors (see below), whose sum is σ = 3009531450080. Its totient is φ = 1504765725036.

The previous prime is 2257148587549. The next prime is 2257148587579. The reversal of 2257148587557 is 7557858417522.

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 not a de Polignac number, because 2257148587557 - 2³ = 2257148587549 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 (2257148586557) 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, 376191431257 + ... + 376191431262.

It is an arithmetic number, because the mean of its divisors is an integer number (752382862520).

Almost surely, 2^{2257148587557} is an apocalyptic number.

It is an amenable number.

2257148587557 is a deficient number, since it is larger than the sum of its proper divisors (752382862523).

2257148587557 is an equidigital number, since it uses as much as digits as its factorization.

2257148587557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752382862522.

The product of its digits is 219520000, while the sum is 66.

The spelling of 2257148587557 in words is "two trillion, two hundred fifty-seven billion, one hundred forty-eight million, five hundred eighty-seven thousand, five hundred fifty-seven".