11621025 has 72 divisors (see below), whose sum is σ = 23357880. Its totient is φ = 5483520.

The previous prime is 11621023. The next prime is 11621039. The reversal of 11621025 is 52012611.

It can be written as a sum of positive squares in 12 ways, for example, as 4524129 + 7096896 = 2127^2 + 2664^2 .

It is not a de Polignac number, because 11621025 - 2¹ = 11621023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11620989 and 11621007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621023) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 84757 + ... + 84893.

It is an arithmetic number, because the mean of its divisors is an integer number (324415).

Almost surely, 2^11621025 is an apocalyptic number.

11621025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11621025 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

11621025 is a wasteful number, since it uses less digits than its factorization.

11621025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 11621025 is about 3408.9624521253. The cubic root of 11621025 is about 226.5069219995.

Adding to 11621025 its reverse (52012611), we get a palindrome (63633636).

It can be divided in two parts, 1162 and 1025, that added together give a 7-th power (2187 = 3⁷).

The spelling of 11621025 in words is "eleven million, six hundred twenty-one thousand, twenty-five".