492512551 has 4 divisors (see below), whose sum is σ = 492732072. Its totient is φ = 492293032.

The previous prime is 492512533. The next prime is 492512563. The reversal of 492512551 is 155215294.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 492512551 - 2⁵ = 492512519 is a prime.

It is a super-2 number, since 2×492512551² = 485137225785055202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492512591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106360 + ... + 110893.

It is an arithmetic number, because the mean of its divisors is an integer number (123183018).

Almost surely, 2^492512551 is an apocalyptic number.

492512551 is a deficient number, since it is larger than the sum of its proper divisors (219521).

492512551 is a wasteful number, since it uses less digits than its factorization.

492512551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219520.

The product of its digits is 18000, while the sum is 34.

The square root of 492512551 is about 22192.6237971088. The cubic root of 492512551 is about 789.7187221676.

The spelling of 492512551 in words is "four hundred ninety-two million, five hundred twelve thousand, five hundred fifty-one".