2542047653 has 4 divisors (see below), whose sum is σ = 2652571488. Its totient is φ = 2431523820.

The previous prime is 2542047649. The next prime is 2542047659. The reversal of 2542047653 is 3567402452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2542047653 - 2² = 2542047649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542047659) 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, 55261883 + ... + 55261928.

It is an arithmetic number, because the mean of its divisors is an integer number (663142872).

Almost surely, 2^2542047653 is an apocalyptic number.

2542047653 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2542047653 is a deficient number, since it is larger than the sum of its proper divisors (110523835).

2542047653 is a wasteful number, since it uses less digits than its factorization.

2542047653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110523834.

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 2542047653 is about 50418.7232384954. The cubic root of 2542047653 is about 1364.7755364470.

The spelling of 2542047653 in words is "two billion, five hundred forty-two million, forty-seven thousand, six hundred fifty-three".