40725129501 has 48 divisors (see below), whose sum is σ = 71258548608. Its totient is φ = 21879475200.

The previous prime is 40725129493. The next prime is 40725129527. The reversal of 40725129501 is 10592152704.

40725129501 is a `hidden beast` number, since 4 + 0 + 7 + 25 + 129 + 501 = 666.

40725129501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40725129501 - 2³ = 40725129493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40725129541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1020361 + ... + 1059521.

It is an arithmetic number, because the mean of its divisors is an integer number (1484553096).

Almost surely, 2^40725129501 is an apocalyptic number.

It is an amenable number.

40725129501 is a deficient number, since it is larger than the sum of its proper divisors (30533419107).

40725129501 is a wasteful number, since it uses less digits than its factorization.

40725129501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40162 (or 40159 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 40725129501 in words is "forty billion, seven hundred twenty-five million, one hundred twenty-nine thousand, five hundred one".