40725001 has 4 divisors (see below), whose sum is σ = 40887504. Its totient is φ = 40562500.

The previous prime is 40724993. The next prime is 40725011. The reversal of 40725001 is 10052704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40725001 - 2³ = 40724993 is a prime.

It is a deceptive number, since it divides R_40725000.

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 40725001.

It is not an unprimeable number, because it can be changed into a prime (40725011) 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, 80875 + ... + 81376.

It is an arithmetic number, because the mean of its divisors is an integer number (10221876).

Almost surely, 2^40725001 is an apocalyptic number.

It is an amenable number.

40725001 is a deficient number, since it is larger than the sum of its proper divisors (162503).

40725001 is a wasteful number, since it uses less digits than its factorization.

40725001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162502.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 40725001 is about 6381.6142942049. The cubic root of 40725001 is about 344.0490538709.

Adding to 40725001 its reverse (10052704), we get a palindrome (50777705).

The spelling of 40725001 in words is "forty million, seven hundred twenty-five thousand, one".