2607557243 has 4 divisors (see below), whose sum is σ = 2697473040. Its totient is φ = 2517641448.

The previous prime is 2607557231. The next prime is 2607557263. The reversal of 2607557243 is 3427557062.

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

It is a cyclic number.

It is not a de Polignac number, because 2607557243 - 2¹² = 2607553147 is a prime.

It is a super-2 number, since 2×2607557243² = 13598709551043522098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2607557243.

It is not an unprimeable number, because it can be changed into a prime (2607557213) 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, 44957855 + ... + 44957912.

It is an arithmetic number, because the mean of its divisors is an integer number (674368260).

Almost surely, 2^2607557243 is an apocalyptic number.

2607557243 is a deficient number, since it is larger than the sum of its proper divisors (89915797).

2607557243 is an equidigital number, since it uses as much as digits as its factorization.

2607557243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89915796.

The product of its (nonzero) digits is 352800, while the sum is 41.

The square root of 2607557243 is about 51064.2462296272. The cubic root of 2607557243 is about 1376.3998513672.

The spelling of 2607557243 in words is "two billion, six hundred seven million, five hundred fifty-seven thousand, two hundred forty-three".