40545051 has 8 divisors (see below), whose sum is σ = 57240144. Its totient is φ = 25440000.

The previous prime is 40545019. The next prime is 40545061. The reversal of 40545051 is 15054504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40545051 - 2⁵ = 40545019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40545061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397450 + ... + 397551.

It is an arithmetic number, because the mean of its divisors is an integer number (7155018).

Almost surely, 2^40545051 is an apocalyptic number.

40545051 is a deficient number, since it is larger than the sum of its proper divisors (16695093).

40545051 is a wasteful number, since it uses less digits than its factorization.

40545051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795021.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 40545051 is about 6367.4995877503. The cubic root of 40545051 is about 343.5415602013.

Adding to 40545051 its reverse (15054504), we get a palindrome (55599555).

The spelling of 40545051 in words is "forty million, five hundred forty-five thousand, fifty-one".