54987641 has 4 divisors (see below), whose sum is σ = 57378432. Its totient is φ = 52596852.

The previous prime is 54987631. The next prime is 54987649. The reversal of 54987641 is 14678945.

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 a de Polignac number, because none of the positive numbers 2^k-54987641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54987592 and 54987601.

It is not an unprimeable number, because it can be changed into a prime (54987649) 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, 1195361 + ... + 1195406.

It is an arithmetic number, because the mean of its divisors is an integer number (14344608).

Almost surely, 2^54987641 is an apocalyptic number.

It is an amenable number.

54987641 is a deficient number, since it is larger than the sum of its proper divisors (2390791).

54987641 is a wasteful number, since it uses less digits than its factorization.

54987641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390790.

The product of its digits is 241920, while the sum is 44.

The square root of 54987641 is about 7415.3651966710. The cubic root of 54987641 is about 380.2667586759.

The spelling of 54987641 in words is "fifty-four million, nine hundred eighty-seven thousand, six hundred forty-one".