52061940 has 120 divisors (see below), whose sum is σ = 186692352. Its totient is φ = 11897280.

The previous prime is 52061909. The next prime is 52061951. The reversal of 52061940 is 4916025.

52061940 is a `hidden beast` number, since 5 + 2 + 0 + 619 + 40 = 666.

It is a super-3 number, since 3×52061940³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9045 + ... + 13635.

Almost surely, 2^52061940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52061940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93346176).

52061940 is an abundant number, since it is smaller than the sum of its proper divisors (134630412).

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

52061940 is a wasteful number, since it uses less digits than its factorization.

52061940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4619 (or 4608 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 52061940 is about 7215.3960390265. The cubic root of 52061940 is about 373.3992567117.

Adding to 52061940 its reverse (4916025), we get a palindrome (56977965).

The spelling of 52061940 in words is "fifty-two million, sixty-one thousand, nine hundred forty".