2512213400 has 48 divisors (see below), whose sum is σ = 5898774240. Its totient is φ = 994928000.

The previous prime is 2512213399. The next prime is 2512213411. The reversal of 2512213400 is 43122152.

It is a super-2 number, since 2×2512213400² = 12622432334279120000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41984 + ... + 82383.

It is an arithmetic number, because the mean of its divisors is an integer number (122891130).

Almost surely, 2^2512213400 is an apocalyptic number.

2512213400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2512213400 is an abundant number, since it is smaller than the sum of its proper divisors (3386560840).

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

2512213400 is a wasteful number, since it uses less digits than its factorization.

2512213400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124484 (or 124475 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2512213400 is about 50121.9851961193. The cubic root of 2512213400 is about 1359.4153701139.

Adding to 2512213400 its reverse (43122152), we get a palindrome (2555335552).

The spelling of 2512213400 in words is "two billion, five hundred twelve million, two hundred thirteen thousand, four hundred".