4000142525 has 6 divisors (see below), whose sum is σ = 4960176762. Its totient is φ = 3200114000.

The previous prime is 4000142519. The next prime is 4000142533. The reversal of 4000142525 is 5252410004.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 752624356 + 3247518169 = 27434^2 + 56987^2 .

It is not a de Polignac number, because 4000142525 - 2¹⁰ = 4000141501 is a prime.

It is a super-2 number, since 2×4000142525² = 32002280440626751250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4000142525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80002826 + ... + 80002875.

It is an arithmetic number, because the mean of its divisors is an integer number (826696127).

Almost surely, 2^4000142525 is an apocalyptic number.

It is an amenable number.

4000142525 is a deficient number, since it is larger than the sum of its proper divisors (960034237).

4000142525 is a wasteful number, since it uses less digits than its factorization.

4000142525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160005711 (or 160005706 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 4000142525 is about 63246.6799523896. The cubic root of 4000142525 is about 1587.4199054389.

Adding to 4000142525 its reverse (5252410004), we get a palindrome (9252552529).

The spelling of 4000142525 in words is "four billion, one hundred forty-two thousand, five hundred twenty-five".