2531454420 has 96 divisors (see below), whose sum is σ = 7981940736. Its totient is φ = 593884800.

The previous prime is 2531454397. The next prime is 2531454421. The reversal of 2531454420 is 244541352.

It is a super-2 number, since 2×2531454420² = 12816522961075072800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531454421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41404 + ... + 82323.

It is an arithmetic number, because the mean of its divisors is an integer number (83145216).

Almost surely, 2^2531454420 is an apocalyptic number.

2531454420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2531454420 is an abundant number, since it is smaller than the sum of its proper divisors (5450486316).

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

2531454420 is a wasteful number, since it uses less digits than its factorization.

2531454420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123781 (or 123779 counting only the distinct ones).

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

The square root of 2531454420 is about 50313.5609950240. The cubic root of 2531454420 is about 1362.8771306283.

Adding to 2531454420 its reverse (244541352), we get a palindrome (2775995772).

The spelling of 2531454420 in words is "two billion, five hundred thirty-one million, four hundred fifty-four thousand, four hundred twenty".