52142802154 has 16 divisors (see below), whose sum is σ = 78609814920. Its totient is φ = 25939687680.

The previous prime is 52142802139. The next prime is 52142802157. The reversal of 52142802154 is 45120824125.

It can be written as a sum of positive squares in 4 ways, for example, as 50457289129 + 1685513025 = 224627^2 + 41055^2 .

It is not an unprimeable number, because it can be changed into a prime (52142802157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639862 + ... + 716734.

Almost surely, 2^52142802154 is an apocalyptic number.

52142802154 is a deficient number, since it is larger than the sum of its proper divisors (26467012766).

52142802154 is a wasteful number, since it uses less digits than its factorization.

52142802154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78585.

The product of its (nonzero) digits is 25600, while the sum is 34.

The spelling of 52142802154 in words is "fifty-two billion, one hundred forty-two million, eight hundred two thousand, one hundred fifty-four".