52120426 has 4 divisors (see below), whose sum is σ = 78180642. Its totient is φ = 26060212.

The previous prime is 52120381. The next prime is 52120427. The reversal of 52120426 is 62402125.

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

It can be written as a sum of positive squares in only one way, i.e., 50908225 + 1212201 = 7135^2 + 1101^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 52120397 and 52120406.

It is not an unprimeable number, because it can be changed into a prime (52120427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13030105 + ... + 13030108.

Almost surely, 2^52120426 is an apocalyptic number.

52120426 is a deficient number, since it is larger than the sum of its proper divisors (26060216).

52120426 is a wasteful number, since it uses less digits than its factorization.

52120426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26060215.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 52120426 is about 7219.4477628140. The cubic root of 52120426 is about 373.5390290434.

The spelling of 52120426 in words is "fifty-two million, one hundred twenty thousand, four hundred twenty-six".