52100402 has 4 divisors (see below), whose sum is σ = 78150606. Its totient is φ = 26050200.

The previous prime is 52100401. The next prime is 52100417. The reversal of 52100402 is 20400125.

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., 38180041 + 13920361 = 6179^2 + 3731^2 .

It is not an unprimeable number, because it can be changed into a prime (52100401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13025099 + ... + 13025102.

Almost surely, 2^52100402 is an apocalyptic number.

52100402 is a deficient number, since it is larger than the sum of its proper divisors (26050204).

52100402 is a wasteful number, since it uses less digits than its factorization.

52100402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26050203.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 52100402 is about 7218.0608199156. The cubic root of 52100402 is about 373.4911866128.

Adding to 52100402 its reverse (20400125), we get a palindrome (72500527).

The spelling of 52100402 in words is "fifty-two million, one hundred thousand, four hundred two".