52640026 has 4 divisors (see below), whose sum is σ = 78960042. Its totient is φ = 26320012.

The previous prime is 52639999. The next prime is 52640053. The reversal of 52640026 is 62004625.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (52639999) and next prime (52640053).

It can be written as a sum of positive squares in only one way, i.e., 49914225 + 2725801 = 7065^2 + 1651^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13160005 + ... + 13160008.

Almost surely, 2^52640026 is an apocalyptic number.

52640026 is a deficient number, since it is larger than the sum of its proper divisors (26320016).

52640026 is a wasteful number, since it uses less digits than its factorization.

52640026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26320015.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 52640026 is about 7255.3446506696. The cubic root of 52640026 is about 374.7762244178.

The spelling of 52640026 in words is "fifty-two million, six hundred forty thousand, twenty-six".