51620546 has 8 divisors (see below), whose sum is σ = 77470464. Its totient is φ = 25797060.

The previous prime is 51620531. The next prime is 51620567. The reversal of 51620546 is 64502615.

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

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, 650 + ... + 10181.

It is an arithmetic number, because the mean of its divisors is an integer number (9683808).

Almost surely, 2^51620546 is an apocalyptic number.

51620546 is a deficient number, since it is larger than the sum of its proper divisors (25849918).

51620546 is a wasteful number, since it uses less digits than its factorization.

51620546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13216.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 51620546 is about 7184.7439759535. The cubic root of 51620546 is about 372.3410032669.

The spelling of 51620546 in words is "fifty-one million, six hundred twenty thousand, five hundred forty-six".