45220615 has 16 divisors (see below), whose sum is σ = 59337216. Its totient is φ = 32810400.

The previous prime is 45220613. The next prime is 45220631. The reversal of 45220615 is 51602254.

It is not a de Polignac number, because 45220615 - 2¹ = 45220613 is a prime.

It is a super-3 number, since 3×45220615³ (a number of 24 digits) contains 333 as substring.

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 45220615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45220613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34054 + ... + 35356.

It is an arithmetic number, because the mean of its divisors is an integer number (3708576).

Almost surely, 2^45220615 is an apocalyptic number.

45220615 is a deficient number, since it is larger than the sum of its proper divisors (14116601).

45220615 is a wasteful number, since it uses less digits than its factorization.

45220615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 45220615 is about 6724.6274989772. The cubic root of 45220615 is about 356.2696453720.

Adding to 45220615 its reverse (51602254), we get a palindrome (96822869).

The spelling of 45220615 in words is "forty-five million, two hundred twenty thousand, six hundred fifteen".