91825550548 has 6 divisors (see below), whose sum is σ = 160694713466. Its totient is φ = 45912775272.

The previous prime is 91825550533. The next prime is 91825550563. The reversal of 91825550548 is 84505552819.

It is an interprime number because it is at equal distance from previous prime (91825550533) and next prime (91825550563).

It can be written as a sum of positive squares in only one way, i.e., 90569698704 + 1255851844 = 300948^2 + 35438^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91825550495 and 91825550504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11478193815 + ... + 11478193822.

Almost surely, 2^91825550548 is an apocalyptic number.

It is an amenable number.

91825550548 is a deficient number, since it is larger than the sum of its proper divisors (68869162918).

91825550548 is a wasteful number, since it uses less digits than its factorization.

91825550548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22956387641 (or 22956387639 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 52.

The spelling of 91825550548 in words is "ninety-one billion, eight hundred twenty-five million, five hundred fifty thousand, five hundred forty-eight".