51613936 has 20 divisors (see below), whose sum is σ = 109093464. Its totient is φ = 23460800.

The previous prime is 51613879. The next prime is 51613949. The reversal of 51613936 is 63931615.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146455 + ... + 146806.

Almost surely, 2^51613936 is an apocalyptic number.

It is an amenable number.

51613936 is an abundant number, since it is smaller than the sum of its proper divisors (57479528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51613936 is a wasteful number, since it uses less digits than its factorization.

51613936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293280 (or 293274 counting only the distinct ones).

The product of its digits is 14580, while the sum is 34.

The square root of 51613936 is about 7184.2839587533. The cubic root of 51613936 is about 372.3251098596.

The spelling of 51613936 in words is "fifty-one million, six hundred thirteen thousand, nine hundred thirty-six".