20552501534 has 4 divisors (see below), whose sum is σ = 30828752304. Its totient is φ = 10276250766.

The previous prime is 20552501527. The next prime is 20552501561. The reversal of 20552501534 is 43510525502.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20552501534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5138125382 + ... + 5138125385.

It is an arithmetic number, because the mean of its divisors is an integer number (7707188076).

Almost surely, 2^20552501534 is an apocalyptic number.

20552501534 is a deficient number, since it is larger than the sum of its proper divisors (10276250770).

20552501534 is a wasteful number, since it uses less digits than its factorization.

20552501534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10276250769.

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 20552501534 in words is "twenty billion, five hundred fifty-two million, five hundred one thousand, five hundred thirty-four".