54191629 has 4 divisors (see below), whose sum is σ = 57043840. Its totient is φ = 51339420.

The previous prime is 54191603. The next prime is 54191659. The reversal of 54191629 is 92619145.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54191629 - 2⁹ = 54191117 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 (54191659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426077 + ... + 1426114.

It is an arithmetic number, because the mean of its divisors is an integer number (14260960).

Almost surely, 2^54191629 is an apocalyptic number.

It is an amenable number.

54191629 is a deficient number, since it is larger than the sum of its proper divisors (2852211).

54191629 is a wasteful number, since it uses less digits than its factorization.

54191629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852210.

The product of its digits is 19440, while the sum is 37.

The square root of 54191629 is about 7361.4963832091. The cubic root of 54191629 is about 378.4228934453.

The spelling of 54191629 in words is "fifty-four million, one hundred ninety-one thousand, six hundred twenty-nine".