7388457253 has 4 divisors (see below), whose sum is σ = 7432699680. Its totient is φ = 7344214828.

The previous prime is 7388457229. The next prime is 7388457257. The reversal of 7388457253 is 3527548837.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3527548837 = 54331 ⋅64927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7388457253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7388457253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7388457257) 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, 22120963 + ... + 22121296.

It is an arithmetic number, because the mean of its divisors is an integer number (1858174920).

Almost surely, 2^7388457253 is an apocalyptic number.

It is an amenable number.

7388457253 is a deficient number, since it is larger than the sum of its proper divisors (44242427).

7388457253 is a wasteful number, since it uses less digits than its factorization.

7388457253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44242426.

The product of its digits is 5644800, while the sum is 52.

The square root of 7388457253 is about 85956.1356332403. The cubic root of 7388457253 is about 1947.6814216086.

The spelling of 7388457253 in words is "seven billion, three hundred eighty-eight million, four hundred fifty-seven thousand, two hundred fifty-three".