5251111525 has 24 divisors (see below), whose sum is σ = 7108920000. Its totient is φ = 3815980800.

The previous prime is 5251111493. The next prime is 5251111543.

5251111525 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5251111525 - 2⁵ = 5251111493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5251111493 and 5251111502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 377901 + ... + 391549.

It is an arithmetic number, because the mean of its divisors is an integer number (296205000).

Almost surely, 2^5251111525 is an apocalyptic number.

5251111525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5251111525 is a deficient number, since it is larger than the sum of its proper divisors (1857808475).

5251111525 is a wasteful number, since it uses less digits than its factorization.

5251111525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15069 (or 15064 counting only the distinct ones).

The product of its digits is 2500, while the sum is 28.

The square root of 5251111525 is about 72464.5535762141. The cubic root of 5251111525 is about 1738.1359706298.

The spelling of 5251111525 in words is "five billion, two hundred fifty-one million, one hundred eleven thousand, five hundred twenty-five".