97242455 has 4 divisors (see below), whose sum is σ = 116690952. Its totient is φ = 77793960.

The previous prime is 97242449. The next prime is 97242461. The reversal of 97242455 is 55424279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55424279 = 3539 ⋅15661.

It is an interprime number because it is at equal distance from previous prime (97242449) and next prime (97242461).

It is not a de Polignac number, because 97242455 - 2⁶ = 97242391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9724241 + ... + 9724250.

It is an arithmetic number, because the mean of its divisors is an integer number (29172738).

Almost surely, 2^97242455 is an apocalyptic number.

97242455 is a deficient number, since it is larger than the sum of its proper divisors (19448497).

97242455 is a wasteful number, since it uses less digits than its factorization.

97242455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19448496.

The product of its digits is 100800, while the sum is 38.

The square root of 97242455 is about 9861.1589075524. The cubic root of 97242455 is about 459.8525913938.

The spelling of 97242455 in words is "ninety-seven million, two hundred forty-two thousand, four hundred fifty-five".