253147632 has 40 divisors (see below), whose sum is σ = 660326784. Its totient is φ = 83561664.

The previous prime is 253147603. The next prime is 253147633. The reversal of 253147632 is 236741352.

It is a junction number, because it is equal to n+sod(n) for n = 253147593 and 253147602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253147633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20658 + ... + 30545.

Almost surely, 2^253147632 is an apocalyptic number.

It is an amenable number.

253147632 is an abundant number, since it is smaller than the sum of its proper divisors (407179152).

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

253147632 is a wasteful number, since it uses less digits than its factorization.

253147632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51317 (or 51311 counting only the distinct ones).

The product of its digits is 30240, while the sum is 33.

The square root of 253147632 is about 15910.6138159406. The cubic root of 253147632 is about 632.5933513212.

Adding to 253147632 its reverse (236741352), we get a palindrome (489888984).

The spelling of 253147632 in words is "two hundred fifty-three million, one hundred forty-seven thousand, six hundred thirty-two".