52246590 has 96 divisors (see below), whose sum is σ = 141916320. Its totient is φ = 12291840.

The previous prime is 52246589. The next prime is 52246613. The reversal of 52246590 is 9564225.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134116 + ... + 134504.

It is an arithmetic number, because the mean of its divisors is an integer number (1478295).

Almost surely, 2^52246590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52246590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70958160).

52246590 is an abundant number, since it is smaller than the sum of its proper divisors (89669730).

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

52246590 is a wasteful number, since it uses less digits than its factorization.

52246590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 52246590 is about 7228.1802689197. The cubic root of 52246590 is about 373.8401854677.

It can be divided in two parts, 52 and 246590, that added together give a palindrome (246642).

The spelling of 52246590 in words is "fifty-two million, two hundred forty-six thousand, five hundred ninety".