4020523425 has 48 divisors (see below), whose sum is σ = 7412858880. Its totient is φ = 2136438720.

The previous prime is 4020523391. The next prime is 4020523447. The reversal of 4020523425 is 5243250204.

It is a happy number.

4020523425 is a `hidden beast` number, since 402 + 0 + 5 + 234 + 25 = 666.

4020523425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4020523425 - 2²⁶ = 3953414561 is a prime.

It is a super-2 number, since 2×4020523425² = 32329217221947461250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 176224 + ... + 197726.

It is an arithmetic number, because the mean of its divisors is an integer number (154434560).

Almost surely, 2^4020523425 is an apocalyptic number.

4020523425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4020523425 is a deficient number, since it is larger than the sum of its proper divisors (3392335455).

4020523425 is a wasteful number, since it uses less digits than its factorization.

4020523425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21799 (or 21788 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 4020523425 is about 63407.5975337341. The cubic root of 4020523425 is about 1590.1113307592. Note that the first 3 decimals are identical.

Adding to 4020523425 its reverse (5243250204), we get a palindrome (9263773629).

The spelling of 4020523425 in words is "four billion, twenty million, five hundred twenty-three thousand, four hundred twenty-five".