551785953 has 8 divisors (see below), whose sum is σ = 736674400. Its totient is φ = 367377408.

The previous prime is 551785901. The next prime is 551785967. The reversal of 551785953 is 359587155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 551785953 - 2¹³ = 551777761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551785153) 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, 117283 + ... + 121896.

It is an arithmetic number, because the mean of its divisors is an integer number (92084300).

Almost surely, 2^551785953 is an apocalyptic number.

It is an amenable number.

551785953 is a deficient number, since it is larger than the sum of its proper divisors (184888447).

551785953 is a wasteful number, since it uses less digits than its factorization.

551785953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239951.

The product of its digits is 945000, while the sum is 48.

The square root of 551785953 is about 23490.1245845994. The cubic root of 551785953 is about 820.2071422951.

The spelling of 551785953 in words is "five hundred fifty-one million, seven hundred eighty-five thousand, nine hundred fifty-three".