40537575 has 36 divisors (see below), whose sum is σ = 78198120. Its totient is φ = 19955520.

The previous prime is 40537559. The next prime is 40537577. The reversal of 40537575 is 57573504.

It is not a de Polignac number, because 40537575 - 2⁴ = 40537559 is a prime.

It is a super-3 number, since 3×40537575³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40537577) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4005 + ... + 9854.

It is an arithmetic number, because the mean of its divisors is an integer number (2172170).

Almost surely, 2^40537575 is an apocalyptic number.

40537575 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40537575 is a deficient number, since it is larger than the sum of its proper divisors (37660545).

40537575 is a wasteful number, since it uses less digits than its factorization.

40537575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13888 (or 13880 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 36.

The square root of 40537575 is about 6366.9125170682. The cubic root of 40537575 is about 343.5204439819.

It can be divided in two parts, 405375 and 75, that added together give a triangular number (405450 = T₉₀₀).

The spelling of 40537575 in words is "forty million, five hundred thirty-seven thousand, five hundred seventy-five".