45125051 has 4 divisors (see below), whose sum is σ = 46225704. Its totient is φ = 44024400.

The previous prime is 45125033. The next prime is 45125053. The reversal of 45125051 is 15052154.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45125051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45125053) 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, 550265 + ... + 550346.

It is an arithmetic number, because the mean of its divisors is an integer number (11556426).

Almost surely, 2^45125051 is an apocalyptic number.

45125051 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

45125051 is a deficient number, since it is larger than the sum of its proper divisors (1100653).

45125051 is a wasteful number, since it uses less digits than its factorization.

45125051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100652.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 45125051 is about 6717.5182173181. The cubic root of 45125051 is about 356.0185020683.

The spelling of 45125051 in words is "forty-five million, one hundred twenty-five thousand, fifty-one".