52142004 has 36 divisors (see below), whose sum is σ = 138742240. Its totient is φ = 16465680.

The previous prime is 52141997. The next prime is 52142039. The reversal of 52142004 is 40024125.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×52142004² = 5437577162272032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37432 + ... + 38799.

Almost surely, 2^52142004 is an apocalyptic number.

It is an amenable number.

52142004 is an abundant number, since it is smaller than the sum of its proper divisors (86600236).

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

52142004 is a wasteful number, since it uses less digits than its factorization.

52142004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76260 (or 76255 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 52142004 is about 7220.9420438056. The cubic root of 52142004 is about 373.5905706604.

Adding to 52142004 its reverse (40024125), we get a palindrome (92166129).

The spelling of 52142004 in words is "fifty-two million, one hundred forty-two thousand, four".