2630254221 has 64 divisors (see below), whose sum is σ = 4524687360. Its totient is φ = 1479124800.

The previous prime is 2630254213. The next prime is 2630254223. The reversal of 2630254221 is 1224520362.

It is a happy number.

2630254221 is a `hidden beast` number, since 2 + 630 + 2 + 5 + 4 + 2 + 21 = 666.

It is not a de Polignac number, because 2630254221 - 2³ = 2630254213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2630254223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4332900 + ... + 4333506.

It is an arithmetic number, because the mean of its divisors is an integer number (70698240).

Almost surely, 2^2630254221 is an apocalyptic number.

2630254221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2630254221 is a deficient number, since it is larger than the sum of its proper divisors (1894433139).

2630254221 is a wasteful number, since it uses less digits than its factorization.

2630254221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2630254221 is about 51286.0041434308. The cubic root of 2630254221 is about 1380.3818555758.

Adding to 2630254221 its reverse (1224520362), we get a palindrome (3854774583).

The spelling of 2630254221 in words is "two billion, six hundred thirty million, two hundred fifty-four thousand, two hundred twenty-one".