45253619 has 4 divisors (see below), whose sum is σ = 45268200. Its totient is φ = 45239040.

The previous prime is 45253603. The next prime is 45253651. The reversal of 45253619 is 91635254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91635254 = 2 ⋅45817627.

It is a cyclic number.

It is not a de Polignac number, because 45253619 - 2⁴ = 45253603 is a prime.

It is a super-2 number, since 2×45253619² = 4095780065194322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45253319) 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, 569 + ... + 9530.

It is an arithmetic number, because the mean of its divisors is an integer number (11317050).

Almost surely, 2^45253619 is an apocalyptic number.

45253619 is a deficient number, since it is larger than the sum of its proper divisors (14581).

45253619 is a wasteful number, since it uses less digits than its factorization.

45253619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14580.

The product of its digits is 32400, while the sum is 35.

The square root of 45253619 is about 6727.0810163101. The cubic root of 45253619 is about 356.3562980631.

The spelling of 45253619 in words is "forty-five million, two hundred fifty-three thousand, six hundred nineteen".