653061251 has 4 divisors (see below), whose sum is σ = 653195400. Its totient is φ = 652927104.

The previous prime is 653061223. The next prime is 653061301. The reversal of 653061251 is 152160356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 653061251 - 2⁶ = 653061187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653061551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59486 + ... + 69603.

It is an arithmetic number, because the mean of its divisors is an integer number (163298850).

Almost surely, 2^653061251 is an apocalyptic number.

653061251 is a deficient number, since it is larger than the sum of its proper divisors (134149).

653061251 is a wasteful number, since it uses less digits than its factorization.

653061251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134148.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 653061251 is about 25555.0631186855. The cubic root of 653061251 is about 867.5968608470.

The spelling of 653061251 in words is "six hundred fifty-three million, sixty-one thousand, two hundred fifty-one".