1634352225 has 48 divisors (see below), whose sum is σ = 2956120320. Its totient is φ = 790171200.

The previous prime is 1634352211. The next prime is 1634352227. The reversal of 1634352225 is 5222534361.

It is a happy number.

It is not a de Polignac number, because 1634352225 - 2⁸ = 1634351969 is a prime.

It is a super-2 number, since 2×1634352225² = 5342214390724901250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1634352227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 310062 + ... + 315288.

It is an arithmetic number, because the mean of its divisors is an integer number (61585840).

Almost surely, 2^1634352225 is an apocalyptic number.

1634352225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1634352225 is a deficient number, since it is larger than the sum of its proper divisors (1321768095).

1634352225 is a wasteful number, since it uses less digits than its factorization.

1634352225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630 (or 5625 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 1634352225 is about 40427.1223932646. The cubic root of 1634352225 is about 1177.9184371203.

Adding to 1634352225 its reverse (5222534361), we get a palindrome (6856886586).

The spelling of 1634352225 in words is "one billion, six hundred thirty-four million, three hundred fifty-two thousand, two hundred twenty-five".