63155401 has 16 divisors (see below), whose sum is σ = 68779008. Its totient is φ = 57816000.

The previous prime is 63155399. The next prime is 63155413. The reversal of 63155401 is 10455136.

It is a cyclic number.

It is not a de Polignac number, because 63155401 - 2¹ = 63155399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63155471) 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, 71575 + ... + 72451.

It is an arithmetic number, because the mean of its divisors is an integer number (4298688).

Almost surely, 2^63155401 is an apocalyptic number.

It is an amenable number.

63155401 is a deficient number, since it is larger than the sum of its proper divisors (5623607).

63155401 is a wasteful number, since it uses less digits than its factorization.

63155401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 63155401 is about 7947.0372466725. The cubic root of 63155401 is about 398.2326211816.

The spelling of 63155401 in words is "sixty-three million, one hundred fifty-five thousand, four hundred one".