55051537 has 2 divisors, whose sum is σ = 55051538. Its totient is φ = 55051536.

The previous prime is 55051519. The next prime is 55051583. The reversal of 55051537 is 73515055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27552001 + 27499536 = 5249^2 + 5244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55051537 is a prime.

It is a super-4 number, since 4×55051537⁴ (a number of 32 digits) contains 4444 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55051499 and 55051508.

It is not a weakly prime, because it can be changed into another prime (55051637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27525768 + 27525769.

It is an arithmetic number, because the mean of its divisors is an integer number (27525769).

Almost surely, 2^55051537 is an apocalyptic number.

It is an amenable number.

55051537 is a deficient number, since it is larger than the sum of its proper divisors (1).

55051537 is an equidigital number, since it uses as much as digits as its factorization.

55051537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13125, while the sum is 31.

The square root of 55051537 is about 7419.6722973458. The cubic root of 55051537 is about 380.4139924855.

The spelling of 55051537 in words is "fifty-five million, fifty-one thousand, five hundred thirty-seven".