40125501051 has 4 divisors (see below), whose sum is σ = 53500668072. Its totient is φ = 26750334032.

The previous prime is 40125501011. The next prime is 40125501077. The reversal of 40125501051 is 15010552104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40125501051 - 2¹⁷ = 40125369979 is a prime.

It is a super-2 number, since 2×40125501051² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40125501011) 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, 6687583506 + ... + 6687583511.

It is an arithmetic number, because the mean of its divisors is an integer number (13375167018).

Almost surely, 2^40125501051 is an apocalyptic number.

40125501051 is a deficient number, since it is larger than the sum of its proper divisors (13375167021).

40125501051 is a wasteful number, since it uses less digits than its factorization.

40125501051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13375167020.

The product of its (nonzero) digits is 1000, while the sum is 24.

The spelling of 40125501051 in words is "forty billion, one hundred twenty-five million, five hundred one thousand, fifty-one".