40582505401 has 3 divisors (see below), whose sum is σ = 40582706853. Its totient is φ = 40582303950.

The previous prime is 40582505399. The next prime is 40582505429. The reversal of 40582505401 is 10450528504.

It is a happy number.

The square root of 40582505401 is 201451.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 40582505401 - 2¹ = 40582505399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40582805401) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 100726 + ... + 302176.

It is an arithmetic number, because the mean of its divisors is an integer number (13527568951).

Almost surely, 2^40582505401 is an apocalyptic number.

40582505401 is the 201451-st square number.

40582505401 is the 100726-th centered octagonal number.

It is an amenable number.

40582505401 is a deficient number, since it is larger than the sum of its proper divisors (201452).

40582505401 is an frugal number, since it uses more digits than its factorization.

40582505401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402902 (or 201451 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 34.

The spelling of 40582505401 in words is "forty billion, five hundred eighty-two million, five hundred five thousand, four hundred one".