5515550247 has 8 divisors (see below), whose sum is σ = 7410205440. Its totient is φ = 3648964280.

The previous prime is 5515550233. The next prime is 5515550269. The reversal of 5515550247 is 7420555155.

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 5515550247 - 2¹⁵ = 5515517479 is a prime.

It is a super-2 number, since 2×5515550247² = 60842589054363522018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515557247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7016847 + ... + 7017632.

It is an arithmetic number, because the mean of its divisors is an integer number (926275680).

Almost surely, 2^5515550247 is an apocalyptic number.

5515550247 is a deficient number, since it is larger than the sum of its proper divisors (1894655193).

5515550247 is a wasteful number, since it uses less digits than its factorization.

5515550247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14034613.

The product of its (nonzero) digits is 175000, while the sum is 39.

The square root of 5515550247 is about 74266.7506156019. The cubic root of 5515550247 is about 1766.8361716599.

The spelling of 5515550247 in words is "five billion, five hundred fifteen million, five hundred fifty thousand, two hundred forty-seven".