45551247 has 16 divisors (see below), whose sum is σ = 72430080. Its totient is φ = 24897312.

The previous prime is 45551239. The next prime is 45551251. The reversal of 45551247 is 74215554.

It is not a de Polignac number, because 45551247 - 2³ = 45551239 is a prime.

It is a super-2 number, since 2×45551247² = 4149832206510018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45551047) 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, 46672 + ... + 47637.

It is an arithmetic number, because the mean of its divisors is an integer number (4526880).

Almost surely, 2^45551247 is an apocalyptic number.

45551247 is a deficient number, since it is larger than the sum of its proper divisors (26878833).

45551247 is a wasteful number, since it uses less digits than its factorization.

45551247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94342.

The product of its digits is 28000, while the sum is 33.

The square root of 45551247 is about 6749.1663929703. The cubic root of 45551247 is about 357.1358301170.

The spelling of 45551247 in words is "forty-five million, five hundred fifty-one thousand, two hundred forty-seven".