40501123425 has 144 divisors (see below), whose sum is σ = 92403192960. Its totient is φ = 16508344320.

The previous prime is 40501123309. The next prime is 40501123433. The reversal of 40501123425 is 52432110504.

40501123425 is a `hidden beast` number, since 405 + 0 + 1 + 1 + 234 + 25 = 666.

It is not a de Polignac number, because 40501123425 - 2²³ = 40492734817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 468919 + ... + 548531.

It is an arithmetic number, because the mean of its divisors is an integer number (641688840).

Almost surely, 2^40501123425 is an apocalyptic number.

40501123425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40501123425 is an abundant number, since it is smaller than the sum of its proper divisors (51902069535).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40501123425 is a wasteful number, since it uses less digits than its factorization.

40501123425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79672 (or 79664 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 40501123425 its reverse (52432110504), we get a palindrome (92933233929).

The spelling of 40501123425 in words is "forty billion, five hundred one million, one hundred twenty-three thousand, four hundred twenty-five".