4040025551 has 4 divisors (see below), whose sum is σ = 4040154600. Its totient is φ = 4039896504.

The previous prime is 4040025511. The next prime is 4040025623. The reversal of 4040025551 is 1555200404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4040025551 - 2¹⁴ = 4040009167 is a prime.

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 4040025551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040025511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15605 + ... + 91233.

It is an arithmetic number, because the mean of its divisors is an integer number (1010038650).

Almost surely, 2^4040025551 is an apocalyptic number.

4040025551 is a deficient number, since it is larger than the sum of its proper divisors (129049).

4040025551 is an equidigital number, since it uses as much as digits as its factorization.

4040025551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129048.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 4040025551 is about 63561.1953238767. The cubic root of 4040025551 is about 1592.6782059774.

Adding to 4040025551 its reverse (1555200404), we get a palindrome (5595225955).

The spelling of 4040025551 in words is "four billion, forty million, twenty-five thousand, five hundred fifty-one".