90155980449525 has 12 divisors (see below), whose sum is σ = 149057887676672. Its totient is φ = 48083189573040.

The previous prime is 90155980449511. The next prime is 90155980449599. The reversal of 90155980449525 is 52594408955109.

It is not a de Polignac number, because 90155980449525 - 2⁷ = 90155980449397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 601039869589 + ... + 601039869738.

Almost surely, 2^{90155980449525} is an apocalyptic number.

It is an amenable number.

90155980449525 is a deficient number, since it is larger than the sum of its proper divisors (58901907227147).

90155980449525 is a wasteful number, since it uses less digits than its factorization.

90155980449525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202079739340 (or 1202079739335 counting only the distinct ones).

The product of its (nonzero) digits is 116640000, while the sum is 66.

The spelling of 90155980449525 in words is "ninety trillion, one hundred fifty-five billion, nine hundred eighty million, four hundred forty-nine thousand, five hundred twenty-five".