2553156506 has 4 divisors (see below), whose sum is σ = 3829734762. Its totient is φ = 1276578252.

The previous prime is 2553156461. The next prime is 2553156511. The reversal of 2553156506 is 6056513552.

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

It can be written as a sum of positive squares in only one way, i.e., 2120142025 + 433014481 = 46045^2 + 20809^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2553156506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638289125 + ... + 638289128.

Almost surely, 2^2553156506 is an apocalyptic number.

2553156506 is a deficient number, since it is larger than the sum of its proper divisors (1276578256).

2553156506 is a wasteful number, since it uses less digits than its factorization.

2553156506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276578255.

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 2553156506 is about 50528.7690924685. The cubic root of 2553156506 is about 1366.7606892945.

The spelling of 2553156506 in words is "two billion, five hundred fifty-three million, one hundred fifty-six thousand, five hundred six".