56290019 has 6 divisors (see below), whose sum is σ = 56983356. Its totient is φ = 55605020.

The previous prime is 56289991. The next prime is 56290021. The reversal of 56290019 is 91009265.

It is not a de Polignac number, because 56290019 - 2²⁰ = 55241443 is a prime.

It is a super-2 number, since 2×56290019² = 6337132478040722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56290049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2804 + ... + 10974.

It is an arithmetic number, because the mean of its divisors is an integer number (9497226).

Almost surely, 2^56290019 is an apocalyptic number.

56290019 is a deficient number, since it is larger than the sum of its proper divisors (693337).

56290019 is an frugal number, since it uses more digits than its factorization.

56290019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8337 (or 8254 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 56290019 is about 7502.6674589775. The cubic root of 56290019 is about 383.2455596557.

The spelling of 56290019 in words is "fifty-six million, two hundred ninety thousand, nineteen".