651485553 has 16 divisors (see below), whose sum is σ = 903230976. Its totient is φ = 417237120.

The previous prime is 651485539. The next prime is 651485573. The reversal of 651485553 is 355584156.

It is a happy number.

651485553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 651485553 - 2⁸ = 651485297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (651485503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12826 + ... + 38307.

It is an arithmetic number, because the mean of its divisors is an integer number (56451936).

Almost surely, 2^651485553 is an apocalyptic number.

It is an amenable number.

651485553 is a deficient number, since it is larger than the sum of its proper divisors (251745423).

651485553 is a wasteful number, since it uses less digits than its factorization.

651485553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51304.

The product of its digits is 360000, while the sum is 42.

The square root of 651485553 is about 25524.2150320044. The cubic root of 651485553 is about 866.8985232887.

The spelling of 651485553 in words is "six hundred fifty-one million, four hundred eighty-five thousand, five hundred fifty-three".