51552542 has 8 divisors (see below), whose sum is σ = 77718000. Its totient is φ = 25646544.

The previous prime is 51552533. The next prime is 51552559. The reversal of 51552542 is 24525515.

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 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, 64367 + ... + 65162.

It is an arithmetic number, because the mean of its divisors is an integer number (9714750).

Almost surely, 2^51552542 is an apocalyptic number.

51552542 is a deficient number, since it is larger than the sum of its proper divisors (26165458).

51552542 is a wasteful number, since it uses less digits than its factorization.

51552542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129730.

The product of its digits is 10000, while the sum is 29.

The square root of 51552542 is about 7180.0098885726. The cubic root of 51552542 is about 372.1774262503.

The spelling of 51552542 in words is "fifty-one million, five hundred fifty-two thousand, five hundred forty-two".