2520124402 has 4 divisors (see below), whose sum is σ = 3780186606. Its totient is φ = 1260062200.

The previous prime is 2520124393. The next prime is 2520124403. The reversal of 2520124402 is 2044210252.

2520124402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 2513919321 + 6205081 = 50139^2 + 2491^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2520124403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630031099 + ... + 630031102.

Almost surely, 2^2520124402 is an apocalyptic number.

2520124402 is a deficient number, since it is larger than the sum of its proper divisors (1260062204).

2520124402 is a wasteful number, since it uses less digits than its factorization.

2520124402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260062203.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2520124402 is about 50200.8406503317. The cubic root of 2520124402 is about 1360.8408154854.

Adding to 2520124402 its reverse (2044210252), we get a palindrome (4564334654).

The spelling of 2520124402 in words is "two billion, five hundred twenty million, one hundred twenty-four thousand, four hundred two".