803657253 has 16 divisors (see below), whose sum is σ = 1229285376. Its totient is φ = 457483440.

The previous prime is 803657227. The next prime is 803657287. The reversal of 803657253 is 352756308.

It is not a de Polignac number, because 803657253 - 2⁶ = 803657189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803657203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67233 + ... + 78278.

It is an arithmetic number, because the mean of its divisors is an integer number (76830336).

Almost surely, 2^803657253 is an apocalyptic number.

It is an amenable number.

803657253 is a deficient number, since it is larger than the sum of its proper divisors (425628123).

803657253 is a wasteful number, since it uses less digits than its factorization.

803657253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145784.

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

The square root of 803657253 is about 28348.8492359037. The cubic root of 803657253 is about 929.7302385586.

The spelling of 803657253 in words is "eight hundred three million, six hundred fifty-seven thousand, two hundred fifty-three".