52155842 has 4 divisors (see below), whose sum is σ = 78233766. Its totient is φ = 26077920.

The previous prime is 52155841. The next prime is 52155889. The reversal of 52155842 is 24855125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39828721 + 12327121 = 6311^2 + 3511^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52155799 and 52155808.

It is not an unprimeable number, because it can be changed into a prime (52155841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13038959 + ... + 13038962.

Almost surely, 2^52155842 is an apocalyptic number.

52155842 is a deficient number, since it is larger than the sum of its proper divisors (26077924).

52155842 is a wasteful number, since it uses less digits than its factorization.

52155842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26077923.

The product of its digits is 16000, while the sum is 32.

The square root of 52155842 is about 7221.9001654689. The cubic root of 52155842 is about 373.6236168846.

The spelling of 52155842 in words is "fifty-two million, one hundred fifty-five thousand, eight hundred forty-two".