5125005551 has 4 divisors (see below), whose sum is σ = 5126773872. Its totient is φ = 5123237232.

The previous prime is 5125005499. The next prime is 5125005553. The reversal of 5125005551 is 1555005215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5125005551 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 (5125005553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879806 + ... + 885611.

It is an arithmetic number, because the mean of its divisors is an integer number (1281693468).

Almost surely, 2^5125005551 is an apocalyptic number.

5125005551 is a deficient number, since it is larger than the sum of its proper divisors (1768321).

5125005551 is a wasteful number, since it uses less digits than its factorization.

5125005551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768320.

The product of its (nonzero) digits is 6250, while the sum is 29.

The square root of 5125005551 is about 71589.1440862370. The cubic root of 5125005551 is about 1724.1092426644.

The spelling of 5125005551 in words is "five billion, one hundred twenty-five million, five thousand, five hundred fifty-one".