532778645 has 8 divisors (see below), whose sum is σ = 730667904. Its totient is φ = 365333904.

The previous prime is 532778627. The next prime is 532778689. The reversal of 532778645 is 546877235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 532778645 - 2⁶ = 532778581 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 532778645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7611089 + ... + 7611158.

It is an arithmetic number, because the mean of its divisors is an integer number (91333488).

Almost surely, 2^532778645 is an apocalyptic number.

It is an amenable number.

532778645 is a deficient number, since it is larger than the sum of its proper divisors (197889259).

532778645 is a wasteful number, since it uses less digits than its factorization.

532778645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15222259.

The product of its digits is 1411200, while the sum is 47.

The square root of 532778645 is about 23081.9982887098. The cubic root of 532778645 is about 810.6790246791.

The spelling of 532778645 in words is "five hundred thirty-two million, seven hundred seventy-eight thousand, six hundred forty-five".