5251102420 has 48 divisors (see below), whose sum is σ = 11086528320. Its totient is φ = 2089197824.

The previous prime is 5251102411. The next prime is 5251102457. The reversal of 5251102420 is 242011525.

It is a junction number, because it is equal to n+sod(n) for n = 5251102391 and 5251102400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4073136 + ... + 4074424.

It is an arithmetic number, because the mean of its divisors is an integer number (230969340).

Almost surely, 2^5251102420 is an apocalyptic number.

It is an amenable number.

5251102420 is an abundant number, since it is smaller than the sum of its proper divisors (5835425900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5251102420 is a wasteful number, since it uses less digits than its factorization.

5251102420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232 (or 2230 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 5251102420 is about 72464.4907523678. The cubic root of 5251102420 is about 1738.1349660338.

Adding to 5251102420 its reverse (242011525), we get a palindrome (5493113945).

The spelling of 5251102420 in words is "five billion, two hundred fifty-one million, one hundred two thousand, four hundred twenty".