4002505542 has 64 divisors (see below), whose sum is σ = 10493030400. Its totient is φ = 1106680320.

The previous prime is 4002505537. The next prime is 4002505561. The reversal of 4002505542 is 2455052004.

4002505542 is a `hidden beast` number, since 400 + 250 + 5 + 5 + 4 + 2 = 666.

4002505542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4002505542² = 32040101227481427528, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159067 + ... + 182502.

It is an arithmetic number, because the mean of its divisors is an integer number (163953600).

Almost surely, 2^4002505542 is an apocalyptic number.

4002505542 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4002505542 is an abundant number, since it is smaller than the sum of its proper divisors (6490524858).

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

4002505542 is a wasteful number, since it uses less digits than its factorization.

4002505542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341618 (or 341612 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 4002505542 is about 63265.3581512031. The cubic root of 4002505542 is about 1587.7324244561.

Adding to 4002505542 its reverse (2455052004), we get a palindrome (6457557546).

The spelling of 4002505542 in words is "four billion, two million, five hundred five thousand, five hundred forty-two".