30525090 has 32 divisors (see below), whose sum is σ = 74822400. Its totient is φ = 7966464.

The previous prime is 30525083. The next prime is 30525113. The reversal of 30525090 is 9052503.

It is a super-2 number, since 2×30525090² = 1863562239016200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 30525090.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9415 + ... + 12234.

It is an arithmetic number, because the mean of its divisors is an integer number (2338200).

Almost surely, 2^30525090 is an apocalyptic number.

30525090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30525090 is an abundant number, since it is smaller than the sum of its proper divisors (44297310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30525090 is a wasteful number, since it uses less digits than its factorization.

30525090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21706.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 30525090 is about 5524.9515834983. The cubic root of 30525090 is about 312.5256384298.

Adding to 30525090 its reverse (9052503), we get a palindrome (39577593).

The spelling of 30525090 in words is "thirty million, five hundred twenty-five thousand, ninety".