40554709925 has 6 divisors (see below), whose sum is σ = 50287840338. Its totient is φ = 32443767920.

The previous prime is 40554709913. The next prime is 40554709973. The reversal of 40554709925 is 52990745504.

It is a Cunningham number, because it is equal to 201382²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1 + 40554709924 = 1^2 + 201382^2 .

It is not a de Polignac number, because 40554709925 - 2⁶ = 40554709861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 811094174 + ... + 811094223.

It is an arithmetic number, because the mean of its divisors is an integer number (8381306723).

Almost surely, 2^40554709925 is an apocalyptic number.

It is an amenable number.

40554709925 is a deficient number, since it is larger than the sum of its proper divisors (9733130413).

40554709925 is a wasteful number, since it uses less digits than its factorization.

40554709925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622188407 (or 1622188402 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 40554709925 in words is "forty billion, five hundred fifty-four million, seven hundred nine thousand, nine hundred twenty-five".