52578622 has 8 divisors (see below), whose sum is σ = 79083936. Its totient is φ = 26217312.

The previous prime is 52578611. The next prime is 52578641. The reversal of 52578622 is 22687525.

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

It is a super-2 number, since 2×52578622² = 5529022982837768, which contains 22 as substring.

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, 35083 + ... + 36550.

It is an arithmetic number, because the mean of its divisors is an integer number (9885492).

Almost surely, 2^52578622 is an apocalyptic number.

52578622 is a deficient number, since it is larger than the sum of its proper divisors (26505314).

52578622 is a wasteful number, since it uses less digits than its factorization.

52578622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72002.

The product of its digits is 67200, while the sum is 37.

The square root of 52578622 is about 7251.1117768243. Note that the first 3 decimals coincide. The cubic root of 52578622 is about 374.6304436316.

The spelling of 52578622 in words is "fifty-two million, five hundred seventy-eight thousand, six hundred twenty-two".