530157780 has 36 divisors (see below), whose sum is σ = 1608145812. Its totient is φ = 141375360.

The previous prime is 530157773. The next prime is 530157809. The reversal of 530157780 is 87751035.

530157780 is a `hidden beast` number, since 5 + 3 + 0 + 1 + 577 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 407878416 + 122279364 = 20196^2 + 11058^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1472481 + ... + 1472840.

It is an arithmetic number, because the mean of its divisors is an integer number (44670717).

Almost surely, 2^530157780 is an apocalyptic number.

It is an amenable number.

530157780 is an abundant number, since it is smaller than the sum of its proper divisors (1077988032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

530157780 is a wasteful number, since it uses less digits than its factorization.

530157780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945336 (or 2945331 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 530157780 is about 23025.1553740686. The cubic root of 530157780 is about 809.3475312652.

The spelling of 530157780 in words is "five hundred thirty million, one hundred fifty-seven thousand, seven hundred eighty".