2521204234 has 4 divisors (see below), whose sum is σ = 3781806354. Its totient is φ = 1260602116.

The previous prime is 2521204211. The next prime is 2521204241. The reversal of 2521204234 is 4324021252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1620304009 + 900900225 = 40253^2 + 30015^2 .

It is a super-3 number, since 3×2521204234³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2521204199 and 2521204208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630301057 + ... + 630301060.

Almost surely, 2^2521204234 is an apocalyptic number.

2521204234 is a deficient number, since it is larger than the sum of its proper divisors (1260602120).

2521204234 is a wasteful number, since it uses less digits than its factorization.

2521204234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260602119.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2521204234 is about 50211.5946171798. The cubic root of 2521204234 is about 1361.0351537259.

Adding to 2521204234 its reverse (4324021252), we get a palindrome (6845225486).

The spelling of 2521204234 in words is "two billion, five hundred twenty-one million, two hundred four thousand, two hundred thirty-four".