40510725 has 24 divisors (see below), whose sum is σ = 67189152. Its totient is φ = 21537600.

The previous prime is 40510699. The next prime is 40510727. The reversal of 40510725 is 52701504.

40510725 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 40510725 - 2¹⁶ = 40445189 is a prime.

It is a super-2 number, since 2×40510725² = 3282237680051250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40510695 and 40510704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40510727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30934 + ... + 32216.

It is an arithmetic number, because the mean of its divisors is an integer number (2799548).

Almost surely, 2^40510725 is an apocalyptic number.

It is an amenable number.

40510725 is a deficient number, since it is larger than the sum of its proper divisors (26678427).

40510725 is a wasteful number, since it uses less digits than its factorization.

40510725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 40510725 is about 6364.8036104816. The cubic root of 40510725 is about 343.4445838196. Note that the first 3 decimals are identical.

The spelling of 40510725 in words is "forty million, five hundred ten thousand, seven hundred twenty-five".