61090553 has 16 divisors (see below), whose sum is σ = 67239936. Its totient is φ = 55315920.

The previous prime is 61090543. The next prime is 61090583. The reversal of 61090553 is 35509016.

It is not a de Polignac number, because 61090553 - 2¹⁰ = 61089529 is a prime.

It is a super-3 number, since 3×61090553³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61090543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32600 + ... + 34422.

It is an arithmetic number, because the mean of its divisors is an integer number (4202496).

Almost surely, 2^61090553 is an apocalyptic number.

It is an amenable number.

61090553 is a deficient number, since it is larger than the sum of its proper divisors (6149383).

61090553 is a wasteful number, since it uses less digits than its factorization.

61090553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 61090553 is about 7816.0445878974. The cubic root of 61090553 is about 393.8444097794.

Adding to 61090553 its reverse (35509016), we get a palindrome (96599569).

The spelling of 61090553 in words is "sixty-one million, ninety thousand, five hundred fifty-three".