3642555550 has 48 divisors (see below), whose sum is σ = 7149542400. Its totient is φ = 1376892000.

The previous prime is 3642555547. The next prime is 3642555557. The reversal of 3642555550 is 555552463.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642555557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393475 + ... + 402625.

It is an arithmetic number, because the mean of its divisors is an integer number (148948800).

Almost surely, 2^3642555550 is an apocalyptic number.

3642555550 is a deficient number, since it is larger than the sum of its proper divisors (3506986850).

3642555550 is a wasteful number, since it uses less digits than its factorization.

3642555550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9601 (or 9596 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 40.

The square root of 3642555550 is about 60353.5877144019. The cubic root of 3642555550 is about 1538.6342462105.

The spelling of 3642555550 in words is "three billion, six hundred forty-two million, five hundred fifty-five thousand, five hundred fifty".