5251167553 has 4 divisors (see below), whose sum is σ = 5560059780. Its totient is φ = 4942275328.

The previous prime is 5251167533. The next prime is 5251167569. The reversal of 5251167553 is 3557611525.

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 4578958224 + 672209329 = 67668^2 + 25927^2 .

It is a cyclic number.

It is not a de Polignac number, because 5251167553 - 2⁵ = 5251167521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5251167533) 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, 154446088 + ... + 154446121.

It is an arithmetic number, because the mean of its divisors is an integer number (1390014945).

Almost surely, 2^5251167553 is an apocalyptic number.

It is an amenable number.

5251167553 is a deficient number, since it is larger than the sum of its proper divisors (308892227).

5251167553 is a wasteful number, since it uses less digits than its factorization.

5251167553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308892226.

The product of its digits is 157500, while the sum is 40.

The square root of 5251167553 is about 72464.9401641925. The cubic root of 5251167553 is about 1738.1421524280.

The spelling of 5251167553 in words is "five billion, two hundred fifty-one million, one hundred sixty-seven thousand, five hundred fifty-three".