38505253 has 4 divisors (see below), whose sum is σ = 39400768. Its totient is φ = 37609740.

The previous prime is 38505251. The next prime is 38505281. The reversal of 38505253 is 35250583.

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: 35250583 = 43 ⋅819781.

It is a cyclic number.

It is not a de Polignac number, because 38505253 - 2¹ = 38505251 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 (38505251) 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, 447693 + ... + 447778.

It is an arithmetic number, because the mean of its divisors is an integer number (9850192).

Almost surely, 2^38505253 is an apocalyptic number.

It is an amenable number.

38505253 is a deficient number, since it is larger than the sum of its proper divisors (895515).

38505253 is an equidigital number, since it uses as much as digits as its factorization.

38505253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895514.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 38505253 is about 6205.2601073605. The cubic root of 38505253 is about 337.6810273464.

The spelling of 38505253 in words is "thirty-eight million, five hundred five thousand, two hundred fifty-three".