551793540 has 48 divisors (see below), whose sum is σ = 1566794880. Its totient is φ = 145071360.

The previous prime is 551793533. The next prime is 551793553. The reversal of 551793540 is 45397155.

It is a super-2 number, since 2×551793540² = 608952221571463200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60505 + ... + 69024.

It is an arithmetic number, because the mean of its divisors is an integer number (32641560).

Almost surely, 2^551793540 is an apocalyptic number.

It is an amenable number.

551793540 is an abundant number, since it is smaller than the sum of its proper divisors (1015001340).

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

551793540 is a wasteful number, since it uses less digits than its factorization.

551793540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129612 (or 129610 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 551793540 is about 23490.2860774406. The cubic root of 551793540 is about 820.2109015324.

The spelling of 551793540 in words is "five hundred fifty-one million, seven hundred ninety-three thousand, five hundred forty".