2780225532 has 60 divisors (see below), whose sum is σ = 8306359600. Its totient is φ = 794349504.

The previous prime is 2780225507. The next prime is 2780225557. The reversal of 2780225532 is 2355220872.

It is a happy number.

2780225532 is a `hidden beast` number, since 2 + 7 + 80 + 22 + 553 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2780225507) and next prime (2780225557).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 610657 + ... + 615192.

Almost surely, 2^2780225532 is an apocalyptic number.

It is an amenable number.

2780225532 is an abundant number, since it is smaller than the sum of its proper divisors (5526134068).

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

2780225532 is a wasteful number, since it uses less digits than its factorization.

2780225532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225872 (or 1225861 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 2780225532 is about 52727.8439915762. The cubic root of 2780225532 is about 1406.1338907869.

The spelling of 2780225532 in words is "two billion, seven hundred eighty million, two hundred twenty-five thousand, five hundred thirty-two".