516220551 has 48 divisors (see below), whose sum is σ = 931976448. Its totient is φ = 267494400.

The previous prime is 516220531. The next prime is 516220597. The reversal of 516220551 is 155022615.

516220551 is a `hidden beast` number, since 51 + 62 + 2 + 0 + 551 = 666.

It is not a de Polignac number, because 516220551 - 2⁷ = 516220423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516220501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 399216 + ... + 400506.

It is an arithmetic number, because the mean of its divisors is an integer number (19416176).

Almost surely, 2^516220551 is an apocalyptic number.

516220551 is a deficient number, since it is larger than the sum of its proper divisors (415755897).

516220551 is a wasteful number, since it uses less digits than its factorization.

516220551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 1889 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 516220551 is about 22720.4874727634. The cubic root of 516220551 is about 802.1921910319.

The spelling of 516220551 in words is "five hundred sixteen million, two hundred twenty thousand, five hundred fifty-one".