52254551651421 has 16 divisors (see below), whose sum is σ = 79626380194304. Its totient is φ = 29859595028784.

The previous prime is 52254551651413. The next prime is 52254551651459. The reversal of 52254551651421 is 12415615545225.

It is a happy number.

It is not a de Polignac number, because 52254551651421 - 2³ = 52254551651413 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 (52254551651821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1811395 + ... + 10382208.

It is an arithmetic number, because the mean of its divisors is an integer number (4976648762144).

Almost surely, 2^{52254551651421} is an apocalyptic number.

It is an amenable number.

52254551651421 is a deficient number, since it is larger than the sum of its proper divisors (27371828542883).

52254551651421 is a wasteful number, since it uses less digits than its factorization.

52254551651421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12397680.

The product of its digits is 2400000, while the sum is 48.

The spelling of 52254551651421 in words is "fifty-two trillion, two hundred fifty-four billion, five hundred fifty-one million, six hundred fifty-one thousand, four hundred twenty-one".