2531622401 has 8 divisors (see below), whose sum is σ = 3156308544. Its totient is φ = 1972692720.

The previous prime is 2531622391. The next prime is 2531622413. The reversal of 2531622401 is 1042261352.

It is a happy number.

2531622401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2531622401 is a prime.

It is a super-2 number, since 2×2531622401² = 12818223962490009602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2531622451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16439030 + ... + 16439183.

It is an arithmetic number, because the mean of its divisors is an integer number (394538568).

Almost surely, 2^2531622401 is an apocalyptic number.

It is an amenable number.

2531622401 is a deficient number, since it is larger than the sum of its proper divisors (624686143).

2531622401 is a wasteful number, since it uses less digits than its factorization.

2531622401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32878231.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2531622401 is about 50315.2303085259. The cubic root of 2531622401 is about 1362.9072756703.

Adding to 2531622401 its reverse (1042261352), we get a palindrome (3573883753).

The spelling of 2531622401 in words is "two billion, five hundred thirty-one million, six hundred twenty-two thousand, four hundred one".