52071894 has 48 divisors (see below), whose sum is σ = 135732480. Its totient is φ = 14094000.

The previous prime is 52071893. The next prime is 52071941. The reversal of 52071894 is 49817025.

It is a super-2 number, since 2×52071894² = 5422964289494472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52071893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8482 + ... + 13269.

It is an arithmetic number, because the mean of its divisors is an integer number (2827760).

Almost surely, 2^52071894 is an apocalyptic number.

52071894 is an abundant number, since it is smaller than the sum of its proper divisors (83660586).

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

52071894 is a wasteful number, since it uses less digits than its factorization.

52071894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21785 (or 21782 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 52071894 is about 7216.0857810866. The cubic root of 52071894 is about 373.4230525937.

The spelling of 52071894 in words is "fifty-two million, seventy-one thousand, eight hundred ninety-four".