74901553 has 8 divisors (see below), whose sum is σ = 79106720. Its totient is φ = 70722720.

The previous prime is 74901539. The next prime is 74901569. The reversal of 74901553 is 35510947.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74901553 is a prime.

It is a super-2 number, since 2×74901553² = 11220485283623618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74901523) 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, 588 + ... + 12253.

It is an arithmetic number, because the mean of its divisors is an integer number (9888340).

Almost surely, 2^74901553 is an apocalyptic number.

It is an amenable number.

74901553 is a deficient number, since it is larger than the sum of its proper divisors (4205167).

74901553 is a wasteful number, since it uses less digits than its factorization.

74901553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13167.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 74901553 is about 8654.5683312341. The cubic root of 74901553 is about 421.5317331559.

The spelling of 74901553 in words is "seventy-four million, nine hundred one thousand, five hundred fifty-three".