551103864 has 96 divisors (see below), whose sum is σ = 1452326400. Its totient is φ = 174078720.

The previous prime is 551103857. The next prime is 551103871. The reversal of 551103864 is 468301155.

It is an interprime number because it is at equal distance from previous prime (551103857) and next prime (551103871).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3964707 + ... + 3964845.

It is an arithmetic number, because the mean of its divisors is an integer number (15128400).

Almost surely, 2^551103864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551103864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726163200).

551103864 is an abundant number, since it is smaller than the sum of its proper divisors (901222536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551103864 is a wasteful number, since it uses less digits than its factorization.

551103864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 551103864 is about 23475.6014619434. The cubic root of 551103864 is about 819.8690371853.

The spelling of 551103864 in words is "five hundred fifty-one million, one hundred three thousand, eight hundred sixty-four".