52021551362154 has 64 divisors (see below), whose sum is σ = 113978894020992. Its totient is φ = 15697818316800.

The previous prime is 52021551362147. The next prime is 52021551362159. The reversal of 52021551362154 is 45126315512025.

It is a happy number.

It is a super-2 number, since 2×52021551362154² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52021551362159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319899714 + ... + 320062290.

It is an arithmetic number, because the mean of its divisors is an integer number (1780920219078).

Almost surely, 2^{52021551362154} is an apocalyptic number.

52021551362154 is an abundant number, since it is smaller than the sum of its proper divisors (61957342658838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52021551362154 is a wasteful number, since it uses less digits than its factorization.

52021551362154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182951.

The product of its (nonzero) digits is 360000, while the sum is 42.

Adding to 52021551362154 its reverse (45126315512025), we get a palindrome (97147866874179).

The spelling of 52021551362154 in words is "fifty-two trillion, twenty-one billion, five hundred fifty-one million, three hundred sixty-two thousand, one hundred fifty-four".