3253747257 has 6 divisors (see below), whose sum is σ = 4699857162. Its totient is φ = 2169164832.

The previous prime is 3253747253. The next prime is 3253747309. The reversal of 3253747257 is 7527473523.

It is a happy number.

3253747257 is a `hidden beast` number, since 3 + 25 + 374 + 7 + 257 = 666.

3253747257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3065947641 + 187799616 = 55371^2 + 13704^2 .

It is not a de Polignac number, because 3253747257 - 2² = 3253747253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3253747253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180763728 + ... + 180763745.

It is an arithmetic number, because the mean of its divisors is an integer number (783309527).

Almost surely, 2^3253747257 is an apocalyptic number.

It is an amenable number.

3253747257 is a deficient number, since it is larger than the sum of its proper divisors (1446109905).

3253747257 is a wasteful number, since it uses less digits than its factorization.

3253747257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361527479 (or 361527476 counting only the distinct ones).

The product of its digits is 1234800, while the sum is 45.

The square root of 3253747257 is about 57041.6274049049. The cubic root of 3253747257 is about 1481.8171096026.

The spelling of 3253747257 in words is "three billion, two hundred fifty-three million, seven hundred forty-seven thousand, two hundred fifty-seven".