45515254 has 16 divisors (see below), whose sum is σ = 72383616. Its totient is φ = 21427200.

The previous prime is 45515251. The next prime is 45515257. The reversal of 45515254 is 45251554.

It is an interprime number because it is at equal distance from previous prime (45515251) and next prime (45515257).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45515251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7627 + ... + 12214.

It is an arithmetic number, because the mean of its divisors is an integer number (4523976).

Almost surely, 2^45515254 is an apocalyptic number.

45515254 is a deficient number, since it is larger than the sum of its proper divisors (26868362).

45515254 is a wasteful number, since it uses less digits than its factorization.

45515254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19911.

The product of its digits is 20000, while the sum is 31.

The square root of 45515254 is about 6746.4993885718. The cubic root of 45515254 is about 357.0417399221.

The spelling of 45515254 in words is "forty-five million, five hundred fifteen thousand, two hundred fifty-four".