45611251 has 4 divisors (see below), whose sum is σ = 52127152. Its totient is φ = 39095352.

The previous prime is 45611233. The next prime is 45611257. The reversal of 45611251 is 15211654.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45611251 - 2⁵ = 45611219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45611257) 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, 3257940 + ... + 3257953.

It is an arithmetic number, because the mean of its divisors is an integer number (13031788).

Almost surely, 2^45611251 is an apocalyptic number.

45611251 is a deficient number, since it is larger than the sum of its proper divisors (6515901).

45611251 is an equidigital number, since it uses as much as digits as its factorization.

45611251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6515900.

The product of its digits is 1200, while the sum is 25.

The square root of 45611251 is about 6753.6102197269. The cubic root of 45611251 is about 357.2925779341.

The spelling of 45611251 in words is "forty-five million, six hundred eleven thousand, two hundred fifty-one".