53777021401 has 16 divisors (see below), whose sum is σ = 54918000000. Its totient is φ = 52644207616.

The previous prime is 53777021399. The next prime is 53777021651. The reversal of 53777021401 is 10412077735.

It is a happy number.

53777021401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 53777021401 - 2¹ = 53777021399 is a prime.

It is a super-2 number, since 2×53777021401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53777081401) 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, 15866415 + ... + 15869803.

It is an arithmetic number, because the mean of its divisors is an integer number (3432375000).

Almost surely, 2^53777021401 is an apocalyptic number.

It is an amenable number.

53777021401 is a deficient number, since it is larger than the sum of its proper divisors (1140978599).

53777021401 is a wasteful number, since it uses less digits than its factorization.

53777021401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496.

The product of its (nonzero) digits is 41160, while the sum is 37.

The spelling of 53777021401 in words is "fifty-three billion, seven hundred seventy-seven million, twenty-one thousand, four hundred one".