551253450015 has 32 divisors (see below), whose sum is σ = 1022615101440. Its totient is φ = 281219149728.

The previous prime is 551253449953. The next prime is 551253450017. The reversal of 551253450015 is 510054352155.

551253450015 is a `hidden beast` number, since 55 + 12 + 534 + 50 + 0 + 15 = 666.

It is not a de Polignac number, because 551253450015 - 2⁹ = 551253449503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551253450017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88765567 + ... + 88771776.

It is an arithmetic number, because the mean of its divisors is an integer number (31956721920).

Almost surely, 2^551253450015 is an apocalyptic number.

551253450015 is a deficient number, since it is larger than the sum of its proper divisors (471361651425).

551253450015 is a wasteful number, since it uses less digits than its factorization.

551253450015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177537380 (or 177537374 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 551253450015 in words is "five hundred fifty-one billion, two hundred fifty-three million, four hundred fifty thousand, fifteen".