100554225 has 12 divisors (see below), whose sum is σ = 166249776. Its totient is φ = 53628880.

The previous prime is 100554221. The next prime is 100554239. The reversal of 100554225 is 522455001.

It is a happy number.

It is not a de Polignac number, because 100554225 - 2² = 100554221 is a prime.

It is a super-2 number, since 2×100554225² = 20222304330701250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100554195 and 100554204.

It is not an unprimeable number, because it can be changed into a prime (100554221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670287 + ... + 670436.

It is an arithmetic number, because the mean of its divisors is an integer number (13854148).

Almost surely, 2^100554225 is an apocalyptic number.

100554225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100554225 is a deficient number, since it is larger than the sum of its proper divisors (65695551).

100554225 is a wasteful number, since it uses less digits than its factorization.

100554225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340736 (or 1340731 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 100554225 is about 10027.6729603632. The cubic root of 100554225 is about 465.0147989278.

The spelling of 100554225 in words is "one hundred million, five hundred fifty-four thousand, two hundred twenty-five".