52391226 has 32 divisors (see below), whose sum is σ = 108887040. Its totient is φ = 16785216.

The previous prime is 52391221. The next prime is 52391237. The reversal of 52391226 is 62219325.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52391193 and 52391202.

It is not an unprimeable number, because it can be changed into a prime (52391221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47655 + ... + 48741.

It is an arithmetic number, because the mean of its divisors is an integer number (3402720).

Almost surely, 2^52391226 is an apocalyptic number.

52391226 is an abundant number, since it is smaller than the sum of its proper divisors (56495814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52391226 is a wasteful number, since it uses less digits than its factorization.

52391226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398.

The product of its digits is 6480, while the sum is 30.

The square root of 52391226 is about 7238.1783619914. The cubic root of 52391226 is about 374.1848390956.

The spelling of 52391226 in words is "fifty-two million, three hundred ninety-one thousand, two hundred twenty-six".