5251547533 has 2 divisors, whose sum is σ = 5251547534. Its totient is φ = 5251547532.

The previous prime is 5251547513. The next prime is 5251547549. The reversal of 5251547533 is 3357451525.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3350325924 + 1901221609 = 57882^2 + 43603^2 .

It is a cyclic number.

It is not a de Polignac number, because 5251547533 - 2²⁵ = 5217993101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5251547513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625773766 + 2625773767.

It is an arithmetic number, because the mean of its divisors is an integer number (2625773767).

Almost surely, 2^5251547533 is an apocalyptic number.

It is an amenable number.

5251547533 is a deficient number, since it is larger than the sum of its proper divisors (1).

5251547533 is an equidigital number, since it uses as much as digits as its factorization.

5251547533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 315000, while the sum is 40.

The square root of 5251547533 is about 72467.5619363588. The cubic root of 5251547533 is about 1738.1840760141.

The spelling of 5251547533 in words is "five billion, two hundred fifty-one million, five hundred forty-seven thousand, five hundred thirty-three".