2512421240 has 32 divisors (see below), whose sum is σ = 6460512480. Its totient is φ = 861401472.

The previous prime is 2512421221. The next prime is 2512421251. The reversal of 2512421240 is 421242152.

It is a super-3 number, since 3×2512421240³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4486187 + ... + 4486746.

It is an arithmetic number, because the mean of its divisors is an integer number (201891015).

Almost surely, 2^2512421240 is an apocalyptic number.

2512421240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2512421240 is an abundant number, since it is smaller than the sum of its proper divisors (3948091240).

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

2512421240 is a wasteful number, since it uses less digits than its factorization.

2512421240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8972951 (or 8972947 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2512421240 is about 50124.0584948984. The cubic root of 2512421240 is about 1359.4528580517.

Adding to 2512421240 its reverse (421242152), we get a palindrome (2933663392).

It can be divided in two parts, 25124 and 21240, that added together give a palindrome (46364).

The spelling of 2512421240 in words is "two billion, five hundred twelve million, four hundred twenty-one thousand, two hundred forty".