2517129542 has 8 divisors (see below), whose sum is σ = 3775910376. Its totient is φ = 1258492752.

The previous prime is 2517129529. The next prime is 2517129547. The reversal of 2517129542 is 2459217152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2517129542² = 12671882262418259528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2517129496 and 2517129505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2517129547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38573 + ... + 80759.

It is an arithmetic number, because the mean of its divisors is an integer number (471988797).

Almost surely, 2^2517129542 is an apocalyptic number.

2517129542 is a deficient number, since it is larger than the sum of its proper divisors (1258780834).

2517129542 is a wasteful number, since it uses less digits than its factorization.

2517129542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72022.

The product of its digits is 50400, while the sum is 38.

The square root of 2517129542 is about 50171.0029997408. The cubic root of 2517129542 is about 1360.3015374494.

The spelling of 2517129542 in words is "two billion, five hundred seventeen million, one hundred twenty-nine thousand, five hundred forty-two".