51620582 has 8 divisors (see below), whose sum is σ = 83387136. Its totient is φ = 23824872.

The previous prime is 51620581. The next prime is 51620593. The reversal of 51620582 is 28502615.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51620581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992678 + ... + 992729.

It is an arithmetic number, because the mean of its divisors is an integer number (10423392).

Almost surely, 2^51620582 is an apocalyptic number.

51620582 is a deficient number, since it is larger than the sum of its proper divisors (31766554).

51620582 is a wasteful number, since it uses less digits than its factorization.

51620582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985422.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 51620582 is about 7184.7464812615. The cubic root of 51620582 is about 372.3410898234.

The spelling of 51620582 in words is "fifty-one million, six hundred twenty thousand, five hundred eighty-two".