2155604262 has 64 divisors (see below), whose sum is σ = 4972161024. Its totient is φ = 610283520.

The previous prime is 2155604257. The next prime is 2155604263. The reversal of 2155604262 is 2624065512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155604263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3493378 + ... + 3493994.

It is an arithmetic number, because the mean of its divisors is an integer number (77690016).

Almost surely, 2^2155604262 is an apocalyptic number.

2155604262 is an abundant number, since it is smaller than the sum of its proper divisors (2816556762).

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

2155604262 is a wasteful number, since it uses less digits than its factorization.

2155604262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 2155604262 is about 46428.4854588215. The cubic root of 2155604262 is about 1291.7833360607.

Adding to 2155604262 its reverse (2624065512), we get a palindrome (4779669774).

The spelling of 2155604262 in words is "two billion, one hundred fifty-five million, six hundred four thousand, two hundred sixty-two".