7620755253 has 4 divisors (see below), whose sum is σ = 10161007008. Its totient is φ = 5080503500.

The previous prime is 7620755183. The next prime is 7620755333. The reversal of 7620755253 is 3525570267.

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.

It is a cyclic number.

It is not a de Polignac number, because 7620755253 - 2⁹ = 7620754741 is a prime.

It is a super-2 number, since 2×7620755253² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7620755953) 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, 1270125873 + ... + 1270125878.

It is an arithmetic number, because the mean of its divisors is an integer number (2540251752).

Almost surely, 2^7620755253 is an apocalyptic number.

It is an amenable number.

7620755253 is a deficient number, since it is larger than the sum of its proper divisors (2540251755).

7620755253 is a wasteful number, since it uses less digits than its factorization.

7620755253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540251754.

The product of its (nonzero) digits is 441000, while the sum is 42.

The square root of 7620755253 is about 87296.9372486802. The cubic root of 7620755253 is about 1967.8832902130.

The spelling of 7620755253 in words is "seven billion, six hundred twenty million, seven hundred fifty-five thousand, two hundred fifty-three".