40725111 has 16 divisors (see below), whose sum is σ = 64756224. Its totient is φ = 22259424.

The previous prime is 40725107. The next prime is 40725133. The reversal of 40725111 is 11152704.

It is a happy number.

It is not a de Polignac number, because 40725111 - 2² = 40725107 is a prime.

It is a super-3 number, since 3×40725111³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40725101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41676 + ... + 42641.

It is an arithmetic number, because the mean of its divisors is an integer number (4047264).

Almost surely, 2^40725111 is an apocalyptic number.

40725111 is a deficient number, since it is larger than the sum of its proper divisors (24031113).

40725111 is a wasteful number, since it uses less digits than its factorization.

40725111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84350.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 40725111 is about 6381.6229127080. The cubic root of 40725111 is about 344.0493636344.

Adding to 40725111 its reverse (11152704), we get a palindrome (51877815).

The spelling of 40725111 in words is "forty million, seven hundred twenty-five thousand, one hundred eleven".