551150515 has 4 divisors (see below), whose sum is σ = 661380624. Its totient is φ = 440920408.

The previous prime is 551150497. The next prime is 551150527. The reversal of 551150515 is 515051155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 515051155 = 5 ⋅103010231.

It is a cyclic number.

It is not a de Polignac number, because 551150515 - 2¹⁹ = 550626227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55115047 + ... + 55115056.

It is an arithmetic number, because the mean of its divisors is an integer number (165345156).

Almost surely, 2^551150515 is an apocalyptic number.

551150515 is a deficient number, since it is larger than the sum of its proper divisors (110230109).

551150515 is a wasteful number, since it uses less digits than its factorization.

551150515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110230108.

The product of its (nonzero) digits is 3125, while the sum is 28.

The square root of 551150515 is about 23476.5950469824. The cubic root of 551150515 is about 819.8921705326.

The spelling of 551150515 in words is "five hundred fifty-one million, one hundred fifty thousand, five hundred fifteen".