26061531 has 8 divisors (see below), whose sum is σ = 35404560. Its totient is φ = 17046432.

The previous prime is 26061523. The next prime is 26061551. The reversal of 26061531 is 13516062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26061531 - 2³ = 26061523 is a prime.

It is a super-2 number, since 2×26061531² = 1358406796127922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26061551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81796 + ... + 82113.

It is an arithmetic number, because the mean of its divisors is an integer number (4425570).

Almost surely, 2^26061531 is an apocalyptic number.

26061531 is a deficient number, since it is larger than the sum of its proper divisors (9343029).

26061531 is a wasteful number, since it uses less digits than its factorization.

26061531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163965.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 26061531 is about 5105.0495590151. The cubic root of 26061531 is about 296.4831218881.

Adding to 26061531 its reverse (13516062), we get a palindrome (39577593).

The spelling of 26061531 in words is "twenty-six million, sixty-one thousand, five hundred thirty-one".