45273530 has 16 divisors (see below), whose sum is σ = 81945864. Its totient is φ = 18008640.

The previous prime is 45273511. The next prime is 45273559. The reversal of 45273530 is 3537254.

It can be written as a sum of positive squares in 4 ways, for example, as 36517849 + 8755681 = 6043^2 + 2959^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45273493 and 45273502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10697 + ... + 14316.

Almost surely, 2^45273530 is an apocalyptic number.

45273530 is a deficient number, since it is larger than the sum of its proper divisors (36672334).

45273530 is a wasteful number, since it uses less digits than its factorization.

45273530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25201.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 45273530 is about 6728.5607673558. The cubic root of 45273530 is about 356.4085544353.

The spelling of 45273530 in words is "forty-five million, two hundred seventy-three thousand, five hundred thirty".