2555352999921 has 16 divisors (see below), whose sum is σ = 3423680480000. Its totient is φ = 1695307034880.

The previous prime is 2555352999919. The next prime is 2555352999931. The reversal of 2555352999921 is 1299992535552.

It is a happy number.

It is not a de Polignac number, because 2555352999921 - 2¹ = 2555352999919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2555352999931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213046 + ... + 2270703.

It is an arithmetic number, because the mean of its divisors is an integer number (213980030000).

Almost surely, 2^{2555352999921} is an apocalyptic number.

It is an amenable number.

2555352999921 is a deficient number, since it is larger than the sum of its proper divisors (868327480079).

2555352999921 is a wasteful number, since it uses less digits than its factorization.

2555352999921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485416.

The product of its digits is 98415000, while the sum is 66.

The spelling of 2555352999921 in words is "two trillion, five hundred fifty-five billion, three hundred fifty-two million, nine hundred ninety-nine thousand, nine hundred twenty-one".