4515420253 has 4 divisors (see below), whose sum is σ = 4523767228. Its totient is φ = 4507073280.

The previous prime is 4515420233. The next prime is 4515420257. The reversal of 4515420253 is 3520245154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3520245154 = 2 ⋅1760122577.

It can be written as a sum of positive squares in 2 ways, for example, as 3545845209 + 969575044 = 59547^2 + 31138^2 .

It is a cyclic number.

It is not a de Polignac number, because 4515420253 - 2¹³ = 4515412061 is a prime.

It is a super-2 number, since 2×4515420253² = 40778040122405168018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4515420257) 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, 4172676 + ... + 4173757.

It is an arithmetic number, because the mean of its divisors is an integer number (1130941807).

Almost surely, 2^4515420253 is an apocalyptic number.

It is an amenable number.

4515420253 is a deficient number, since it is larger than the sum of its proper divisors (8346975).

4515420253 is an equidigital number, since it uses as much as digits as its factorization.

4515420253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8346974.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 4515420253 is about 67196.8768098637. The cubic root of 4515420253 is about 1652.8472727828.

The spelling of 4515420253 in words is "four billion, five hundred fifteen million, four hundred twenty thousand, two hundred fifty-three".