40201553531 has 4 divisors (see below), whose sum is σ = 40271227512. Its totient is φ = 40131879552.

The previous prime is 40201553519. The next prime is 40201553551. The reversal of 40201553531 is 13535510204.

40201553531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40201553531 - 2³⁰ = 39127811707 is a prime.

It is a super-2 number, since 2×40201553531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40201553494 and 40201553503.

It is not an unprimeable number, because it can be changed into a prime (40201553551) 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, 34836125 + ... + 34837278.

It is an arithmetic number, because the mean of its divisors is an integer number (10067806878).

Almost surely, 2^40201553531 is an apocalyptic number.

40201553531 is a deficient number, since it is larger than the sum of its proper divisors (69673981).

40201553531 is an equidigital number, since it uses as much as digits as its factorization.

40201553531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69673980.

The product of its (nonzero) digits is 9000, while the sum is 29.

It can be divided in two parts, 4020 and 1553531, that added together give a palindrome (1557551).

The spelling of 40201553531 in words is "forty billion, two hundred one million, five hundred fifty-three thousand, five hundred thirty-one".