5632721426 has 4 divisors (see below), whose sum is σ = 8449082142. Its totient is φ = 2816360712.

The previous prime is 5632721411. The next prime is 5632721429. The reversal of 5632721426 is 6241272365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6241272365 = 5 ⋅1248254473.

It can be written as a sum of positive squares in only one way, i.e., 3299928025 + 2332793401 = 57445^2 + 48299^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5632721426.

It is not an unprimeable number, because it can be changed into a prime (5632721429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1408180355 + ... + 1408180358.

Almost surely, 2^5632721426 is an apocalyptic number.

5632721426 is a deficient number, since it is larger than the sum of its proper divisors (2816360716).

5632721426 is a wasteful number, since it uses less digits than its factorization.

5632721426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816360715.

The product of its digits is 120960, while the sum is 38.

The square root of 5632721426 is about 75051.4585201380. The cubic root of 5632721426 is about 1779.2600368759.

The spelling of 5632721426 in words is "five billion, six hundred thirty-two million, seven hundred twenty-one thousand, four hundred twenty-six".