2155350401 has 12 divisors (see below), whose sum is σ = 2269412352. Its totient is φ = 2043024984.

The previous prime is 2155350397. The next prime is 2155350409. The reversal of 2155350401 is 1040535512.

It is not a de Polignac number, because 2155350401 - 2² = 2155350397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155350409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2508710 + ... + 2509568.

It is an arithmetic number, because the mean of its divisors is an integer number (189117696).

Almost surely, 2^2155350401 is an apocalyptic number.

It is an amenable number.

2155350401 is a deficient number, since it is larger than the sum of its proper divisors (114061951).

2155350401 is an frugal number, since it uses more digits than its factorization.

2155350401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868 (or 1009 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 2155350401 is about 46425.7514855710. The cubic root of 2155350401 is about 1291.7326238637.

Adding to 2155350401 its reverse (1040535512), we get a palindrome (3195885913).

The spelling of 2155350401 in words is "two billion, one hundred fifty-five million, three hundred fifty thousand, four hundred one".