52142790 has 32 divisors (see below), whose sum is σ = 143020800. Its totient is φ = 11918304.

The previous prime is 52142773. The next prime is 52142801. The reversal of 52142790 is 9724125.

52142790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123940 + ... + 124359.

It is an arithmetic number, because the mean of its divisors is an integer number (4469400).

Almost surely, 2^52142790 is an apocalyptic number.

52142790 is an abundant number, since it is smaller than the sum of its proper divisors (90878010).

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

52142790 is a wasteful number, since it uses less digits than its factorization.

52142790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248316.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 52142790 is about 7220.9964686323. The cubic root of 52142790 is about 373.5924478464.

The spelling of 52142790 in words is "fifty-two million, one hundred forty-two thousand, seven hundred ninety".