54087551 has 4 divisors (see below), whose sum is σ = 61814352. Its totient is φ = 46360752.

The previous prime is 54087533. The next prime is 54087577. The reversal of 54087551 is 15578045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54087551 - 2¹⁸ = 53825407 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 (54087511) 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, 3863390 + ... + 3863403.

It is an arithmetic number, because the mean of its divisors is an integer number (15453588).

Almost surely, 2^54087551 is an apocalyptic number.

54087551 is a deficient number, since it is larger than the sum of its proper divisors (7726801).

54087551 is an equidigital number, since it uses as much as digits as its factorization.

54087551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726800.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 54087551 is about 7354.4239067380. The cubic root of 54087551 is about 378.1804775373.

The spelling of 54087551 in words is "fifty-four million, eighty-seven thousand, five hundred fifty-one".