40542501 has 16 divisors (see below), whose sum is σ = 57599424. Its totient is φ = 25277184.

The previous prime is 40542473. The next prime is 40542503. The reversal of 40542501 is 10524504.

It is not a de Polignac number, because 40542501 - 2⁷ = 40542373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40542503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5875 + ... + 10751.

It is an arithmetic number, because the mean of its divisors is an integer number (3599964).

Almost surely, 2^40542501 is an apocalyptic number.

It is an amenable number.

40542501 is a deficient number, since it is larger than the sum of its proper divisors (17056923).

40542501 is a wasteful number, since it uses less digits than its factorization.

40542501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40542501 is about 6367.2993490176. The cubic root of 40542501 is about 343.5343579303.

It can be divided in two parts, 4054 and 2501, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 40542501 in words is "forty million, five hundred forty-two thousand, five hundred one".