1632652257 has 4 divisors (see below), whose sum is σ = 2176869680. Its totient is φ = 1088434836.

The previous prime is 1632652243. The next prime is 1632652261. The reversal of 1632652257 is 7522562361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7522562361 = 3 ⋅2507520787.

It is not a de Polignac number, because 1632652257 - 2²³ = 1624263649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1632652297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272108707 + ... + 272108712.

It is an arithmetic number, because the mean of its divisors is an integer number (544217420).

Almost surely, 2^1632652257 is an apocalyptic number.

It is an amenable number.

1632652257 is a deficient number, since it is larger than the sum of its proper divisors (544217423).

1632652257 is an equidigital number, since it uses as much as digits as its factorization.

1632652257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544217422.

The product of its digits is 151200, while the sum is 39.

The square root of 1632652257 is about 40406.0918303169. The cubic root of 1632652257 is about 1177.5098923173.

The spelling of 1632652257 in words is "one billion, six hundred thirty-two million, six hundred fifty-two thousand, two hundred fifty-seven".