91900022253 has 8 divisors (see below), whose sum is σ = 131959006368. Its totient is φ = 56553859824.

The previous prime is 91900022239. The next prime is 91900022273. The reversal of 91900022253 is 35222000919.

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

It is not a de Polignac number, because 91900022253 - 2¹⁰ = 91900021229 is a prime.

It is a super-2 number, since 2×91900022253² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91900022233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178205375 + ... + 1178205452.

It is an arithmetic number, because the mean of its divisors is an integer number (16494875796).

Almost surely, 2^91900022253 is an apocalyptic number.

It is an amenable number.

91900022253 is a deficient number, since it is larger than the sum of its proper divisors (40058984115).

91900022253 is a wasteful number, since it uses less digits than its factorization.

91900022253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356410843.

The product of its (nonzero) digits is 9720, while the sum is 33.

The spelling of 91900022253 in words is "ninety-one billion, nine hundred million, twenty-two thousand, two hundred fifty-three".