516222425 has 12 divisors (see below), whose sum is σ = 677770236. Its totient is φ = 388684800.

The previous prime is 516222407. The next prime is 516222433. The reversal of 516222425 is 524222615.

It can be written as a sum of positive squares in 6 ways, for example, as 13162384 + 503060041 = 3628^2 + 22429^2 .

It is not a de Polignac number, because 516222425 - 2¹⁰ = 516221401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 606896 + ... + 607745.

It is an arithmetic number, because the mean of its divisors is an integer number (56480853).

Almost surely, 2^516222425 is an apocalyptic number.

It is an amenable number.

516222425 is a deficient number, since it is larger than the sum of its proper divisors (161547811).

516222425 is a wasteful number, since it uses less digits than its factorization.

516222425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214668 (or 1214663 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 516222425 is about 22720.5287130383. The cubic root of 516222425 is about 802.1931617452.

The spelling of 516222425 in words is "five hundred sixteen million, two hundred twenty-two thousand, four hundred twenty-five".