40425243501 has 4 divisors (see below), whose sum is σ = 53900324672. Its totient is φ = 26950162332.

The previous prime is 40425243493. The next prime is 40425243511. The reversal of 40425243501 is 10534252404.

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 not a de Polignac number, because 40425243501 - 2³ = 40425243493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40425243511) 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, 6737540581 + ... + 6737540586.

It is an arithmetic number, because the mean of its divisors is an integer number (13475081168).

Almost surely, 2^40425243501 is an apocalyptic number.

It is an amenable number.

40425243501 is a deficient number, since it is larger than the sum of its proper divisors (13475081171).

40425243501 is a wasteful number, since it uses less digits than its factorization.

40425243501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13475081170.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 40425243501 its reverse (10534252404), we get a palindrome (50959495905).

The spelling of 40425243501 in words is "forty billion, four hundred twenty-five million, two hundred forty-three thousand, five hundred one".