20251250402 has 16 divisors (see below), whose sum is σ = 31585669632. Its totient is φ = 9727462560.

The previous prime is 20251250401. The next prime is 20251250407. The reversal of 20251250402 is 20405215202.

It is a super-2 number, since 2×20251250402² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20251250401) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1183598 + ... + 1200585.

It is an arithmetic number, because the mean of its divisors is an integer number (1974104352).

Almost surely, 2^20251250402 is an apocalyptic number.

20251250402 is a deficient number, since it is larger than the sum of its proper divisors (11334419230).

20251250402 is a wasteful number, since it uses less digits than its factorization.

20251250402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384353.

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 20251250402 its reverse (20405215202), we get a palindrome (40656465604).

The spelling of 20251250402 in words is "twenty billion, two hundred fifty-one million, two hundred fifty thousand, four hundred two".