51109299 has 20 divisors (see below), whose sum is σ = 77075064. Its totient is φ = 33748704.

The previous prime is 51109237. The next prime is 51109301. The reversal of 51109299 is 99290115.

It is not a de Polignac number, because 51109299 - 2⁷ = 51109171 is a prime.

It is a super-2 number, since 2×51109299² = 5224320888542802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51109699) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5719 + ... + 11615.

Almost surely, 2^51109299 is an apocalyptic number.

51109299 is a deficient number, since it is larger than the sum of its proper divisors (25965765).

51109299 is a wasteful number, since it uses less digits than its factorization.

51109299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6016 (or 6007 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 36.

The square root of 51109299 is about 7149.0767935447. The cubic root of 51109299 is about 371.1077079427.

The spelling of 51109299 in words is "fifty-one million, one hundred nine thousand, two hundred ninety-nine".