5256430051402 has 4 divisors (see below), whose sum is σ = 7884645077106. Its totient is φ = 2628215025700.

The previous prime is 5256430051387. The next prime is 5256430051409. The reversal of 5256430051402 is 2041500346525.

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., 5023788787161 + 232641264241 = 2241381^2 + 482329^2 .

It is not an unprimeable number, because it can be changed into a prime (5256430051409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314107512849 + ... + 1314107512852.

Almost surely, 2^{5256430051402} is an apocalyptic number.

5256430051402 is a deficient number, since it is larger than the sum of its proper divisors (2628215025704).

5256430051402 is a wasteful number, since it uses less digits than its factorization.

5256430051402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628215025703.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 5256430051402 its reverse (2041500346525), we get a palindrome (7297930397927).

The spelling of 5256430051402 in words is "five trillion, two hundred fifty-six billion, four hundred thirty million, fifty-one thousand, four hundred two".