51513542 has 8 divisors (see below), whose sum is σ = 77744856. Its totient is φ = 25598592.

The previous prime is 51513533. The next prime is 51513559. The reversal of 51513542 is 24531515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78683 + ... + 79334.

It is an arithmetic number, because the mean of its divisors is an integer number (9718107).

Almost surely, 2^51513542 is an apocalyptic number.

51513542 is a deficient number, since it is larger than the sum of its proper divisors (26231314).

51513542 is a wasteful number, since it uses less digits than its factorization.

51513542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158182.

The product of its digits is 3000, while the sum is 26.

The square root of 51513542 is about 7177.2935010351. The cubic root of 51513542 is about 372.0835506247.

The spelling of 51513542 in words is "fifty-one million, five hundred thirteen thousand, five hundred forty-two".