5155250021 has 8 divisors (see below), whose sum is σ = 5268984000. Its totient is φ = 5042394720.

The previous prime is 5155250011. The next prime is 5155250033. The reversal of 5155250021 is 1200525515.

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

It is a cyclic number.

It is not a de Polignac number, because 5155250021 - 2¹⁴ = 5155233637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155250011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 207800 + ... + 231281.

It is an arithmetic number, because the mean of its divisors is an integer number (658623000).

Almost surely, 2^5155250021 is an apocalyptic number.

It is an amenable number.

5155250021 is a deficient number, since it is larger than the sum of its proper divisors (113733979).

5155250021 is a wasteful number, since it uses less digits than its factorization.

5155250021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439339.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 5155250021 is about 71800.0697840887. The cubic root of 5155250021 is about 1727.4941190200.

Adding to 5155250021 its reverse (1200525515), we get a palindrome (6355775536).

The spelling of 5155250021 in words is "five billion, one hundred fifty-five million, two hundred fifty thousand, twenty-one".