52697142 has 40 divisors (see below), whose sum is σ = 118683576. Its totient is φ = 17476128.

The previous prime is 52697137. The next prime is 52697143. The reversal of 52697142 is 24179625.

52697142 is a `hidden beast` number, since 526 + 97 + 1 + 42 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 52697097 and 52697106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52697143) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36058 + ... + 37490.

Almost surely, 2^52697142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52697142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59341788).

52697142 is an abundant number, since it is smaller than the sum of its proper divisors (65986434).

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

52697142 is a wasteful number, since it uses less digits than its factorization.

52697142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674 (or 1665 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 52697142 is about 7259.2797163355. The cubic root of 52697142 is about 374.9117232209.

The spelling of 52697142 in words is "fifty-two million, six hundred ninety-seven thousand, one hundred forty-two".