5215520402 has 8 divisors (see below), whose sum is σ = 7823588796. Its totient is φ = 2607657472.

The previous prime is 5215520371. The next prime is 5215520437. The reversal of 5215520402 is 2040255125.

It can be written as a sum of positive squares in 2 ways, for example, as 4820663761 + 394856641 = 69431^2 + 19871^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63218 + ... + 120114.

Almost surely, 2^5215520402 is an apocalyptic number.

5215520402 is a deficient number, since it is larger than the sum of its proper divisors (2608068394).

5215520402 is a wasteful number, since it uses less digits than its factorization.

5215520402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102732.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 5215520402 is about 72218.5599551805. The cubic root of 5215520402 is about 1734.2001370277.

Adding to 5215520402 its reverse (2040255125), we get a palindrome (7255775527).

The spelling of 5215520402 in words is "five billion, two hundred fifteen million, five hundred twenty thousand, four hundred two".