40553867 has 4 divisors (see below), whose sum is σ = 40664736. Its totient is φ = 40443000.

The previous prime is 40553831. The next prime is 40553869. The reversal of 40553867 is 76835504.

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 40553867 - 2²⁴ = 23776651 is a prime.

It is a super-2 number, since 2×40553867² = 3289232257307378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40553867.

It is not an unprimeable number, because it can be changed into a prime (40553869) 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, 54884 + ... + 55617.

It is an arithmetic number, because the mean of its divisors is an integer number (10166184).

Almost surely, 2^40553867 is an apocalyptic number.

40553867 is a deficient number, since it is larger than the sum of its proper divisors (110869).

40553867 is a wasteful number, since it uses less digits than its factorization.

40553867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110868.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 40553867 is about 6368.1918155784. The cubic root of 40553867 is about 343.5664579618.

The spelling of 40553867 in words is "forty million, five hundred fifty-three thousand, eight hundred sixty-seven".