40513775 has 6 divisors (see below), whose sum is σ = 50237112. Its totient is φ = 32411000.

The previous prime is 40513769. The next prime is 40513789. The reversal of 40513775 is 57731504.

It is not a de Polignac number, because 40513775 - 2⁸ = 40513519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 810251 + ... + 810300.

It is an arithmetic number, because the mean of its divisors is an integer number (8372852).

Almost surely, 2^40513775 is an apocalyptic number.

40513775 is a deficient number, since it is larger than the sum of its proper divisors (9723337).

40513775 is a wasteful number, since it uses less digits than its factorization.

40513775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620561 (or 1620556 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 40513775 is about 6365.0432048809. The cubic root of 40513775 is about 343.4532027692.

The spelling of 40513775 in words is "forty million, five hundred thirteen thousand, seven hundred seventy-five".