51414202009 has 9 divisors (see below), whose sum is σ = 51721448671. Its totient is φ = 51108773800.

The previous prime is 51414201967. The next prime is 51414202013. The reversal of 51414202009 is 90020241415.

The square root of 51414202009 is 226747.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 50375558025 + 1038643984 = 224445^2 + 32228^2 .

It is not a de Polignac number, because 51414202009 - 2¹¹ = 51414199961 is a prime.

It is a super-4 number, since 4×51414202009⁴ (a number of 44 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51414202019) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 44668584 + ... + 44669734.

Almost surely, 2^51414202009 is an apocalyptic number.

51414202009 is the 226747-th square number.

51414202009 is the 113374-th centered octagonal number.

It is an amenable number.

51414202009 is a deficient number, since it is larger than the sum of its proper divisors (307246662).

51414202009 is an frugal number, since it uses more digits than its factorization.

51414202009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 51414202009 in words is "fifty-one billion, four hundred fourteen million, two hundred two thousand, nine".