651054533 has 4 divisors (see below), whose sum is σ = 654818028. Its totient is φ = 647291040.

The previous prime is 651054527. The next prime is 651054541. The reversal of 651054533 is 335450156.

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 629357569 + 21696964 = 25087^2 + 4658^2 .

It is a cyclic number.

It is not a de Polignac number, because 651054533 - 2¹⁴ = 651038149 is a prime.

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 651054533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651056533) 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, 1881488 + ... + 1881833.

It is an arithmetic number, because the mean of its divisors is an integer number (163704507).

Almost surely, 2^651054533 is an apocalyptic number.

It is an amenable number.

651054533 is a deficient number, since it is larger than the sum of its proper divisors (3763495).

651054533 is a wasteful number, since it uses less digits than its factorization.

651054533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763494.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 651054533 is about 25515.7702803580. The cubic root of 651054533 is about 866.7073023517.

The spelling of 651054533 in words is "six hundred fifty-one million, fifty-four thousand, five hundred thirty-three".