97542551 has 8 divisors (see below), whose sum is σ = 98248464. Its totient is φ = 96839680.

The previous prime is 97542547. The next prime is 97542593. The reversal of 97542551 is 15524579.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97542551 - 2² = 97542547 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 (97542541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125801 + ... + 126573.

It is an arithmetic number, because the mean of its divisors is an integer number (12281058).

Almost surely, 2^97542551 is an apocalyptic number.

97542551 is a deficient number, since it is larger than the sum of its proper divisors (705913).

97542551 is a wasteful number, since it uses less digits than its factorization.

97542551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521.

The product of its digits is 63000, while the sum is 38.

The square root of 97542551 is about 9876.3632476737. The cubic root of 97542551 is about 460.3251497617.

The spelling of 97542551 in words is "ninety-seven million, five hundred forty-two thousand, five hundred fifty-one".