52137442 has 8 divisors (see below), whose sum is σ = 89378496. Its totient is φ = 22344612.

The previous prime is 52137401. The next prime is 52137473. The reversal of 52137442 is 24473125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 52137442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862038 + ... + 1862065.

It is an arithmetic number, because the mean of its divisors is an integer number (11172312).

Almost surely, 2^52137442 is an apocalyptic number.

52137442 is a deficient number, since it is larger than the sum of its proper divisors (37241054).

52137442 is a wasteful number, since it uses less digits than its factorization.

52137442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724112.

The product of its digits is 6720, while the sum is 28.

The square root of 52137442 is about 7220.6261501341. The cubic root of 52137442 is about 373.5796749669.

The spelling of 52137442 in words is "fifty-two million, one hundred thirty-seven thousand, four hundred forty-two".