7520503253 has 4 divisors (see below), whose sum is σ = 7520812320. Its totient is φ = 7520194188.

The previous prime is 7520503139. The next prime is 7520503273. The reversal of 7520503253 is 3523050257.

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 7520503253 - 2¹⁸ = 7520241109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7520503273) 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, 114593 + ... + 167846.

It is an arithmetic number, because the mean of its divisors is an integer number (1880203080).

Almost surely, 2^7520503253 is an apocalyptic number.

It is an amenable number.

7520503253 is a deficient number, since it is larger than the sum of its proper divisors (309067).

7520503253 is a wasteful number, since it uses less digits than its factorization.

7520503253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309066.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 7520503253 is about 86720.8351724083. The cubic root of 7520503253 is about 1959.2159203257.

The spelling of 7520503253 in words is "seven billion, five hundred twenty million, five hundred three thousand, two hundred fifty-three".